300ml deionising pod with resinas ro units are only 98 efficient in removing unwanted compounds from your mains water some people like to remove this last amount using deionised resinthis refillable post ro deionising pod can be used with any of our ro units and simply clips on to the membrane housing and connects via push fit fittings inline with the clean water pipethe unit contains 300ml of di resin which can be replaced when exhausted resin included