System 3 Replacement Cartridge Filters (Inner and Outer)
Replacement set of System 3 Cartridge Filters (Inner & Outer). For Pentair/Sta-Rite and G3 Cartridge Filter Systems.
Cartridge Filters should be replaced every 3-5 years (dependent on use and debris near the pool). We highly suggest having a 2nd set of filters on hand to use when cleaning your other set so there is no downtime. Remember, we recommend at least 2 professional filter cleanings each season. You may need up to 4 cleanings depending on usage and pool surroundings.