SoClean Replacement Cartridge Filter Kit

SoClean Replacement Cartridge Filter Kit includes one replacement filter with O-ring attached and one replacement check valve for the SoClean 2. The filter and check valve should be replaced every six months. The cartridge Filter is suitable for SoClean 2 units and it converts activated oxygen back to regular oxygen as it leaves the SoClean 2 chamber. The check valve prevents water from the CPAP from damaging the CPAP electronics.