Membrane systems use external pressure to overcome natural osmotic pressure forcing water through a semi permeable membrane to remove up to 99% of the contaminants.

Puretec supplies a wide variety of replacement membranes from various manufacturers such as Toray, FilmTec and Hydranautics.
We stock the most popular sizes and styles:
- Reverse Osmosis (RO)
- Nanofiltration (NF)
- Wide range of sizes - 8", 4" and 2.5"
- Tap Water
- Brackish Water
- Seawater
- Low Pressure
- Ultra-Low Pressure
We also have replacement parts for most machines:
- Vessels
- End Caps
- Stub Tubes & Adapters
- Seals
- Pumps