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Cartridge Filters – 31″ x 8″

Your are here : Home > Products & Systems > Water Filters > Cartridge Filters > Replacement Cartridge Filters > Cartridge Filters – 31″ x 8″


Replacement Cartridge Filters – 31″ x 8″

Industrial Water Equipment specialise in supplying a vast range of Industrial water systems including replacement cartridge filters. Dependent on your intended use there are dozens of different types of cartridge filters available which suit different applications and can produce a specific water quality.

Some of the replacement water filters we supply include Pleated filters, Melt Blown filters, Jumbo filters, Wound filters, High Temperature filters, High Purity filters ,Oil Reduction filters, Carbon Block filters, Granular Activated Carbon filters, Big Bubba filters, Cryptosporidium filters and Hot Tub and Fridge filters.

All of these filters work on same principle, the pores within the filters are large enough to allow water to flow through but small enough to not allow certain contaminants. The variation of these filters is to suit different applications such as – High temperature filters to be used with hot water applications – stem production or boiler feed.

Whatever water treatment system you have in place, we have the replacement filter for you, if you can’t find the filter you require or you need further advice, just ask.

We are able to offer top quality products at the most competitive prices. Our service is second to none and you can be sure to find what you are looking for with over 20,000 products available in our online catalogue.

Jumbo Filter for Sediment Removal
Jumbo Filter
SizeMicron RatingPrice
31" x 8"Absolute to 50£238.18 to £614.92

More Information

In the world of water treatment, the word sediment refers to any kind of participate meter that can be carried, suspended or transported by still or flowing water. Sediment may also settle on the bed of the water source.

Common sediments that occur within water supplies include rust, sand, clay and organics.

There are various reasons for removing sediment from your water supply. It may be to protect your equipment from premature failure, such as water treatment equipment, boilers or pumps. The sediment present may also have an adverse effect on the look and the taste of your water. This may not matter to every application but for applications such as the food and beverage industries, this could be of a huge detriment for production.

There are various ranges of sediment filters available on the market. Industrial Water Equipment stock and supply only the best and our prices are the most competitive on the web. Filters suitable for sediment removal are Pleated Filters, Melt Blown Filters, Jumbo Filters, Wound Filters and Big Bubba Filters. Within this selection, each filter has specific qualities, which makes them particularly effective at attracting and therefore removing specific types of sediment.

Pleated filters allow for very refined filtration ranging between 0.003 – 100 microns.

The filters are constructed of 100% polypropylene and are even washable. The filtration is more robust than their wound filter counterparts but this is reflected in their price.

Pleated filters are specifically designed to handle high flow rates and their large surface area also allows for a high level of dirt holding capacity.

They are particularly suited to treating potable water, well water, swimming pools and spa’s. Pleated filters are great sediment filters, they are however unable to sanitise water in any way. Water that is contaminated with unsafe macrobiotics should be treated and disinfected afterwards with an alternative water treatment method such as chemical dosing or Ultraviolet sanitisation.

Melt Blown filters allow for a very refined filtration making them great sediment filters.

They are specifically designed to withstand temperatures up to 125ºF and their 100% polypropylene thermal bonded outer shell allows for great chemical resistance. These filters also have a long service life when compared to other similar products on the market. These filters are most commonly used for the following applications – Food and beverage industries, cosmetics, aerosols, paints and varnishing production.

Wound filters are available in a multitude of different lengths, widths, materials and micron ratings to suit your every need.

The wound filter is a very robust sediment removal filter and is ideal for use as a depth filter. Different materials can be used to suit your intended application such as stainless plated steel for applications using highly corrosive acid and to withstand temperatures up to 750ºF. Generally, for water treatment, the standard polypropylene wound filter is more than sufficient and It can be used up to 200ºF.

Wound filters are an ideal pre treatment before a Reverse Osmosis system or Ultraviolet system. They are also particularly useful for protecting other types of equipment such as boilers and pumps where known sediment is in the water.

Jumbo filters are specifically designed to allow for a longer period of time between filter replacement or cleaning. The jumbo cylinder works the very same way in which the regular sized filter does but allows for a higher flow rate and a higher dirt holding capacity

Big bubba filters are available in a range of different specifications. They are available in Pleated, Melt Blown and Activated Carbon. The difference between these and any of our other filter range is that they are bigger. They are able to cope with very high levels of turbidity and can withstand high flow rates up to 36 m3/Hr. They are available between 1 – 150 microns.

There are many different reasons as to why you may need to remove chlorine from your water supply. One reason may be to protect the equipment you are using to treat another unrelated issue such as a water softener. A water softener is used, as the name suggests, to soften the Ph of your water. The technology used to complete this process in known as Ion exchange and uses ion exchange resin to complete this process. Ion exchange resin is made up of charged polypropylene beads that are approximately 1mm diameter. The resin has an approximate life span of 5 years if regularly cleaned and correctly maintained. One way in which the resin becomes fouled is through contact with chlorine, it has a negative reaction with the chlorine and expands before turning mushy. Once the resin gets to this stage, the damage is irreversible and will require replacement. 

Another water treatment system that does not tolerate chlorine is Reverse Osmosis systems. RO technology is a very fine, nano membrane technology. The results are the finest and most pure water quality of any other technology available. The membranes used within an RO are made from a three-layer combination – polymide, polyrthersulfone and a woven support layer. If chlorine, comes into contact with the membrane, they quickly become fouled and once fouled with chlorine, the damage is irreversible. Membranes are expensive to replace so protecting the membranes from chlorine is very important.

To protect softeners or any other water treatment equipment from chlorine, it is recommended that a carbon filter is used beforehand as a pre treatment. Chlorine removal is also required when dealing with production within the food and beverage industries. The presence of chlorine will undoubtedly have a negative effect on the colour, taste, and odour of the foods and beverages produced. Removal of the chlorine will help to keep the production line consistent.  Regardless of the scale of your project, we have Activated Carbon Filters available to suit you every need. We supply only the best filter housings and media. We supply both Fleck and Siata in a variation of different sizes ranging from 0.6m3/hr – 10.7m3/hr in the Simplex range and up to 21.4m3/hr in the duplex range

Oils that commonly require removal from a water source include fats, grease, and wax. These compounds have a very similar make up but are used to describe if the substances are in a liquid or solid form. These oils are very commonly deposited down our main sewerage in a number of different forms due to the consumption and disposal of foods such as meat, nuts, cereals and cooking fats. Once these products have been deposited in our sewerage systems, they quickly become a huge problem if they are not removed costing water companies millions of pounds a year to keep on top of. The type of filtration commonly used to remove fats from a water source is an oil block filter. This cartridge filter works by absorption and attracts oils and fats to the filter with an overall 99.9% success rate. A standard filter is capable of absorbing up to 2 litres of oil before requiring replacement and can run up to 500 litres per hour. Larger filters are available should you require the removal or larger oil volumes.

These filters are of a 100% polypropylene construction and able to withstand temperatures of up to 60ºc. A large mesh pre filtration treatment could be used if there are particles prevalent that exceed 25µ

There are various reasons as to why you may need to remove colour, taste or odour (CT&O) from your water supply. The foods and beverage industries commonly use these filters to ensure consistency in the production of their products. Another very common use for this type of filter is for general drinking water in the form of a point of use filter.

There are a few different methods available on the market with varying levels of accuracy and pricing. 

The most popular method of removing CT&O is by using Activated Carbon Filtration. This method is essentially the primary method of CT&O removal, other methods are available and work to varying degrees. It is important to note however that their effectiveness and capabilities will vary so research must be carried out before hand to determine if  alternative filtration methods may be appropriate. These alternative methods include Reverse Osmosis and Ion Exchange.

Reverse Osmosis technology is the most robust and refined form of water treatment available on the market. Reverse osmosis is also known as nano technology. For more general information on Reverse Osmosis, please click here. Although Reverse Osmosis is perhaps one of the most comprehensive ways of removing colour, taste and odour, it is also one of the more expensive methods. Unless you require ultra fine water alongside the removal of colour taste and odour, it is advised that another cheaper yet just as effective method of water treatment is used such as Activated Carbon Filtration or Ion exchange.

is another method that is successfully used to remove CT&O. Ion Exchange or water softening can remove some bad colours, taste and odours form your water. It is not as effective as reverse osmosis but is usually considerably cheaper. Ion exchange is not the most suitable option for drinking water. It is not unsafe to drink in moderate quantities, as a small quantity of the sodium added during the regeneration process will be passed on to the processed water. This will have a minor effect on the taste and the increase in sodium, if consumed in large quantities is viewed to have a negative impact on the health of people suffering with raised blood pressure or heart conditions. For further details regarding Ion exchange, please click here.

Activated Carbon is the primary and most successful way of removing colour, taste and odours. It works by adsorption. The carbon granules used within the filter are extremely porous. Just 1lb of activated carbon has the surface area of up to 125 acres.

Adsorption is similar but different to absorption.

The dictionary term for absorption is – “The process by which one thing absorbs or is absorbed by another”.

If you were to spill a glass of water, you would clear up the spillage using a tissue or kitchen towel. This is because these objects are absorbent. They attract the water in its entirety and suck it up through the kitchen towel until it reached the point of saturation.

The dictionary term for adsorption is – “ (of a solid) hold (molecules of a gas or liquid or solute) as a thin film on the outside surface or on internal surfaces within the material”

If you were to clear that same spillage of water using a sheet of writing paper, the paper would become wet on its surface. It would take on some but not all of the water. If the water were to have a colorant added to it such as a dye or cordial, the paper, if left long enough would take on some of the coloured pigment, leaving the water behind.

This phenomenon is known as adsorption and works the same with carbon. If a piece of carbon were placed in a jar with a dyed solution, the carbon would attract the dye pigments sticking them to its surface and leaving the water behind.

Activated Carbon is not only great at removing CT&O, but also very effectively removes chlorine and a vast range of other chemicals, organics, ozone and metals.

Activated Carbon Filtration is often used within the food and beverage industries, aerospace industries, borehole treatments polishing treatments for effluent, ground water purification and as a pretreatment before Reverse Osmosis and water softening.

For more detailed information on Activated Carbon filtration, click here.

Nitrates can be commonly found in untreated water such as well water/ ground water and surface water. They are colourless, odourless and tasteless.

Nitrate can also be referred to as NO³ or NO³-N for Nitrate with Nitrogen.

Nitrates levels vary from town to town depending on the characteristics of the land and local industries. Local agricultural and horticultural works can have a huge impact on nitrates being absorbed into the land through fertilisers. Fertilisers not only boost the growth of plants and crops, but once filtered through the land, the nitrates also increase the levels of algae. Algae within a water supply dramatically reduces the oxygen content which can result in the death of aquatic species. If contaminated water is consumed by humans it can be very detrimental to heath and can lead to a condition called methaemoglobineamia which for infants can be fatal. There is also a serious risk posed to the elderly or those who have a weekend immune system.

To remove nitrates from a water source, you have three main options. Reverse Osmosis, Distillation and Ion Exchange.

Reverse Osmosis – can remove nitrates from a water supply. Reverse Osmosis works by membrane technology and an applied positive pressure. Water is fired through a semi permeable membrane that allows for pure water particles to pass through and leaves any additional contaminants behind including nitrates. This is the purest form of water treatment. Pre treatments are required before Reverse Osmosis to ensure the membranes do not become clogged or fouled. You will need to ensure chlorine is entirely removed and any particulate over 1 micron. Pre treatments such as carbon filtration, multimedia filtration or water softening may be required before you proceed with Reverse Osmosis to ensure it is effective. Reverse osmosis is traditionally one of the more expensive ways to filter your water. If you do not require ultra fine or absolute filtration, this method may not be suitable for you. For more details on reverse osmosis click here.

Distillation is also an effective way of removing nitrates from a water source. Distillation works by evaporation. Water is boiled until the point of evaporation, the water rises until it hits a cold surface and becomes condensation and is then collected. When water evaporates, it leaves behind most contaminants, including nitrates. Contaminants that may be carried with condensation and to the distilled water are those that are easily transformed to gasses such as gasoline or radon. If used for drinking water, naturally occurring minerals may need to be added as they will have been lost during the distillation process and may result in the water tasting flat. It is important to note that boiling alone does not remove nitrates, it does in fact increase the levels of nitrates. Distillation may not always be appropriate or economical for large-scale usage. It is generally considered to be a slow process requiring a large and constant energy source, which can be expensive. The general rule is that 5 gallons of permeate is required to produce 1 gallon of purified water therefore there is a lot of waste produced.

Ion exchange (sometimes referred to as water softening) is the most common and effective form of Nitrate removal. To ensure Nitrate removal however, an alternative resin known as anionic resin is used. Unlike the conventional water softening cationic resin, anionic resin attracts negatively charged ions including nitrates. Other contaminants anionic resin is known to remove include – Chlorides, Sulphides, Carbonates, Silica and Hydroxyl. The regular cationic resin removes – Calcium, Magnesium, Iron, Manganese, Sodium and Hydrogen.

Mixed bed resins are a combination to strong acid cation and strong based anion and will therefore be effective at removing both positively and negatively charged ions such as calcium and magnesium as well as nitrates. Be sure to establish that your resin has within it a form of Anion to ensure appropriate nitrate removal.

For more information on ion exchange or water softening click here.

It has long since been established that consuming large quantities of lead is detrimental to health. There is no safe level of lead consumption and lead prevalence in air, water or soil is closely monitored and controlled. When consumed, the body confuses Lead with calcium and other nutrients that are valuable for the body due to their similar chemical structure. The body then tries to absorb it accordingly. This can lead to long-term irreversible damage to cognitive development and behavior, particularly for children under seven years old. There is a long list of possible side affect of lead consumption for both adults and children. It is of paramount importance to remove or at least reduce lead prevalence within your drinking water to ensure they are at safe levels.

Lead can be naturally occurring and found in our ground water supplies, but generally speaking, lead contamination comes directly from our homes. Before the 1970’s, any house build was likely to have been fitted with lead pipework for their plumbing systems. It is only since the 70’s that restrictions were put in place and lead pipework, joints and solders could no longer be used. If you house was build before this period, the likelihood is that the pipework supplying your fresh water is in fact lead. This doesn’t however necessarily mean that the water you are drinking is unsafe. If you are unsure, it may be wise to test your water supply. In most cases, particularly in hard water areas, scale has built up along the plumbing works and provided a protective layer of calcium and magnesium scale. This scale will prevent any lead form becoming absorbed into the water supply. 

Lead removal is not a straightforward process. Despite this, there is a range of options available to you to reduce or eliminate the lead within your water supply.

Acid neutralisation – is a method whereby calcium is added to the water source to raise the Ph levels making it less corrosive to the calcium and magnesium scale build up already formed on the plumbing pipework. This process may make the water ‘harder’. This is a relatively cheap method of reducing or preventing lead contamination but may be a great option if lead levels are currently low but regulation is required.

Reverse Osmosis – Is an absolute nano filtration technology. It is the purest and most robust filtration method available within the water treatment industry. Because of this fact and the technology involved, it may also be a more expensive water treatment method. Reverse osmosis uses membrane technology with an added positive pressure. It forces water through a semi-permeable membrane leaving contaminants behind and delivering pure and contaminant free water. This method removes contaminants alongside the natural minerals found within water. This can give the water a flat taste that some people find undesirable. It also requires the permeate water to be sediment free down to 1 micron otherwise the semi-permeable membrane will become prematurely blocked or may become damaged. Despite the cost and the effects on taste, if the correct pretreatments are used, reverse osmosis is a very successful way of removing lead from your water supply

Distillation – Works by evaporation. Water is boiled until the point of evaporation, the water rises until it hits a cold surface and becomes condensation and is then collected. When water evaporates, it leaves behind most contaminants, including lead. You may need to be mindful that contaminants that may be carried into the distilled water are those that are easily transformed to gasses such as gasoline or radon. Heavier contaminants will remain such as lead, nitrates, magnesium and calcium. If used for drinking water, naturally occurring minerals may need to be added as they will have been lost during the distillation process and may result in the water tasting flat.

Ion Exchange/ Water softening – Specific Resins are available to remove lead through ion exchange. Contrary to what you may read elsewhere, it is not ideal that Ion exchange systems should be used within a house or factory that is known to have lead pipework if the water is then intended for human use or consumption. This is due to the fact that that a softener is usually positioned before the in-house plumbing system and therefore may still have to pass through some amount of lead piping after treatment, defeating the object entirely. Another major factor is that once water has been processed through an ion exchange system, the treated water then becomes ‘soft’. This can be corrosive to the pipes or the protective layer of calcium and magnesium buildup on the inside of the pipework leaving the risk of lead contamination even greater.

Sometimes referred to as organic scavenging (OS) filters. These filters are basically an ion exchange system with the addition on a specialist strong based macro-porous anion exchange resin. These specialist resins are particularly porous and are negatively charged and therefore attract positively charged contaminants, which includes organic matter. Organic matter included any compound that is derived from a living thing and containing carbon. This can include anything from grass cuttings, moss and algae to animal droppings, small animals and insects.

Organic fouling occurs I’m many of our natural water sources including, surface water, run off, boreholes/ wells, lakes, lochs, rivers and reservoirs. Prevalence can vary greatly depending on your geographical location and associated industries such as agriculture and horticulture. Natural organic matter very often finds its way into these natural water sources and if left untreated, would cause a huge problem if consumed by humans, livestock or other animals. Municipal water is regulated and treated accordingly but privately owned worker sources such as boreholes need to be constantly monitored for presence of organics and removed accordingly.

These systems are great at removing colour from water caused by organic matter, ion or manganese.

These systems are very effective, just 25ltrs or resin can remove up to 2000pmm of organic matter.

Standard water treatment equipment is not designed to deal with high temperatures. Softeners usually will not tolerate temperatures higher that 42ºc and generic cartridge filters only 38ºc. The need for high temperature filtration is required if your permeate flow exceeds these temperatures. Hot water treatment may be required to filter boiler water or outdoor water heaters. In these situations, it may not be appropriate to filter beforehand as the scale buildup is already within the system and will therefore be transferred to the outgoing water regardless of pre treatment. There are a vast range of high temperature filter cartridges and filter housings available, there is sure to be one to suit your requirements.

There are two main types of high temperature water filters available. Phenolic Cellulose filter cartridges and Stainless Steel filter cartridges.

Phenolic Cellulose Filter Cartridges – These critical industrial grade water cartridges are ideal for high temperature filtration of water and oil. The maximum temperature is 121ºc. This specially designed media vastly outperforms other standard wound, pleated, spun and melt blown filters, there unique design gives for a longer lifespan and increased surface area. These filters are particularly durable and benefit from a strengthened spiral core that can withstand pressures of 100psi paired with a strengthening outer casing. The end caps, core out outer casing is constructed from electro plated tin. taking all of this into account, Phenolic Cellulose filter cartridges filters are one of the strongest and most durable cartridge filters currently available on the market.

Stainless Steed Cartridge filters – All components within the filter are constructed of 100% stainless steel. These filters are available in both pleated and standard cylindrical style filters. These filters are specifically designed for high temperatures up to 121ºc. These filters are commonly used for hot water applications, high pressure applications and the filtration of water, gas, oil, solvents and aggressive chemicals. These filters are capable of filtering to a very fine standard down to 0.5 micron all the way up to 200 micron. They are constructed of a fine five-layer mesh, which allows for great filtration along with strength, durability, consistency and reliability. They are very easy to clean and are generally resistant to corrosion. They are a great all round industrial grade critical filter. The pleated versions are designed to have an even better dirt holding capacity.

There are various different technologies available on the market to inhibit, remove and prevent reoccurrence of scale formation on your water treatment equipment, membranes, filters and pipework. Scale within water is caused by precipitation of prevalent contaminants. This precipitation included calcium sulphite, calcium carbonate and strontium sulphate. Moderate to high levels of these soluble gasses are very common within natural water sources therefore scale on untreated water is also very common. Scale formation can be very problematic for your water treatment, particularly for Reverse Osmosis membranes and boiler feed. 

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