The workhorse and industry standard, CPA2 delivers consistently high performance, day in and day out


The element with the best combination of productivity and salt rejection available


CPA5-LD has minimized biofouling, minimized colloidal fouling and enhanced cleanability

High Performance for the highest quality water

When high performance counts, CPA membranes from Hydranautics set the standard for RO membrane elements.

CPA membranes provide the highest salt rejection rates available - every element on every order for every customer.

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