Reverse osmosis filter cartridge (RO membrane) with 285 l/day (75GPD) clean water production for removal of salts, bacteria, dissolved metals, calcium, nutrients and high dH hardness. This is the third and main filter unit in a RO filtration system. The condition of the RO-membrane is monitored by measuring the purified water with a TDS or EC-meter; when the reading begins to increase significantly, the RO-cartridge should be replaced.

This filter cartridge is of a standard size and it is interchangeable with similar RO-filters sold under other brand names. This filter is CE-approved.