Pentair System 3 Modular Media Filter S7M120 Replacement Cartridge Pack

Pentair System 3 modular media filters combine a balanced flow and integral manifold design, plus an easily cleaned media element. Modular filter ranks permit quick change of filter media. This means the filter system not only requires less frequent cleaning but is also easy to clean, all you have to do it spray it with the hose inside and out. 

This cartridge pack comes with inner and outer replacements.