Collection: Replacement Water Filters & Cartridges

Looking for genuine Water2Buy filters in Ireland? At Culligan Ireland (formerly Celtic Water Solutions), we stock a full range of reverse osmosis replacement filters to keep your Water2Buy system running smoothly and delivering clean, great-tasting water.

Our Water2Buy Filter Range

Complete RO filter kits – including sediment, carbon, RO membranes, and polishing filters.

DIY twist-and-replace cartridges – no tools or plumber required.

Compatible replacement parts – tailored specifically for Water2Buy systems.

Why Choose Culligan Ireland?

Official Water2Buy filter stockist – ensuring compatibility and reliability.
Fast delivery across Ireland – from Dublin to Galway, Cork to Limerick.
Trusted expertise – over 20 years of experience in water filtration, now strengthened as part of Culligan, the global leader in clean water solutions.