Replacement Filters RA100,200,300,400 (6pk)

The round air filter mounted on the bottom of all Rena Air model pumps should be replaced when dirty to avoid damage to the air pump valves and increased clogging of diffusers. This filter will fit the RA100, RA200, RA300 and RA400. The filter for the RA50 is smaller and will not work with the above pumps.