Deionisation and DI Resin

Interested in making your drinking water as pure and as healthy as possible? Using a Reverse Osmosis unit  will ensure your water is filtered to the best possible form. Pure water means healthy and safe water - free of contaminants, toxins and other nasties - suitable for everyday use. To ensure your RO unit is working at its best, you’ll need DI resin. Deionisation is a resin based filtration process which removes all dissolved solids from your water. It works by attracting non-water ions and replacing them with water ions. This leads to an incredibly pure and high quality water.

Finest Filters offers the best Deionisation (DI) Resin and RO Resin filters as an ideal replacement resin for your RO unit. We sell resin holders and compartments which can be opened and filled with DI resin when needed. If your current RO unit doesn't have a DI stage, you can also opt for the DI chamber which includes housing, resin holder, resin, connectors and tubing. Luckily, all of our DI Resin and RO Resin are compatible with all RO holders. 

Need to stock up on DI resin for your Reverse Osmosis unit? Or maybe you need a resin holder as well? Browse our range of DI resin products below. You can also enjoy same-day despatch on orders placed before 4pm – with no minimum order quantity. If you need any more information about our products or what stock we have available, contact our team today. We would be happy to help!

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  1. Pack Of 4 Replacement Filter Foams For Blue Ended Inline Resin Holder

    Pack of 4 replacement filter foams suitable for the 10" Blue Ended resin holder filter housing.

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  2. Pack Of 4 Replacement Filter Foams For Reverse Osmosis Resin Holder

    Pack of 4 replacement filter foams for our 10" Reverse Osmosis resin holder.

    These replacement foams can prevent the need to purchase a complete resin holder if replacement sponges are required.

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  3. Compact Reverse Osmosis RO Unit DI Deionisation Add On Stage

    You are purchasing a add on De-ionisation kit for addition to any compact reverse osmosis unit.

    This extra filter stage will convert any 3 stage unit into a 4 stage unit, and the de-ionisation resin will reduce the TDS (total dissolved solids) within the product water further, resulting in ultra pure RO water.

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  4. 1 Litre Deionising (DI) Resin

    Our high quality Mixed Bed Tulsion DI Resin is ideal for ensuring 000TDS from your RO Unit.

    Suitable for all types of Reverse Osmosis filters / Deionising filters. Pure water is required for many application such as Aquariums, Window Cleaning etc.

    Quantity you are purchasing: 1000ml (1 litre).

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  5. 5 Litres Deionising (DI) Resin Pouch

    Our high quality Mixed Bed Tulsion DI Resin is ideal for ensuring 000TDS from your RO Unit.

    Suitable for all types of Reverse Osmosis filters / Deionising filters. Pure water is required for many application such as Aquariums, Window Cleaning etc.

    Quantity you are purchasing: 5000ml (5 litres).

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