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Our last trading day is Friday, December 19th, 2025, for the Christmas period. We will be dispatching orders until 1 p.m., and then our normal service will resume on Friday, January 2nd. Please note - orders will still be accepted, but WILL NOT be dispatched until January 2026. Merry Christmas and a Happy New Year to all of our customers!
Our last trading day is Friday, December 19th, 2025, for the Christmas period. We will be dispatching orders until 1 p.m., and then our normal service will resume on Friday, January 2nd. Please note - orders will still be accepted, but WILL NOT be dispatched until January 2026. Merry Christmas and a Happy New Year to all of our customers!

Reverse Osmosis Consumables

View our range of replacement filters and membranes to keep your reverse osmosis system running smoothly.

Filters

£
£

Carbon Prefilter for Pentair On Demand and Merlin RO

Pentair
£53.49 - £53.49
£53.49
£53.49 - £53.49
£53.49

Carbon Prefilter for Pentair On Demand and Merlin RO Most Pentair on demand systems will have 2 membranes and one of these filters.  

£53.49 - £53.49
£53.49
£53.49 - £53.49
£53.49

Membrane for Pentair On Demand and Merlin RO

Pentair
£189.95 - £189.95
£189.95
£189.95 - £189.95
£189.95

The Pentair On Demand R.O system takes 2 of these Membranes.  

£189.95 - £189.95
£189.95
£189.95 - £189.95
£189.95

Post Filter for Pentair On Demand and Merlin RO

Pentair
£59.95 - £59.95
£59.95
£59.95 - £59.95
£59.95

Post Filter for Pentair On Demand and Merlin RO The inline post filter has 3/8" push fit fittings built in.

£59.95 - £59.95
£59.95
£59.95 - £59.95
£59.95