Pentair Spa/Pool Replacement Filter Cartridge (R173216) pooltool or performance loss that makes

or performance loss that makes the rest of the wet-end service incomplete without replacing it

CMP mini air control

or otherwise stopped transmitting air pressure correctly

serviceability

Useful when the original baffle is damaged or missing

Pentair Spa/Pool Replacement Filter Cartridge (R173216) pooltool or performance loss that makesThe Pentair R173216 replacement filter cartridge is intended for compatible spa and pool filtration applications where the cartridge element needs renewal. A cartridge like this is useful because it serves as the main filtering medium inside the housing, helping trap debris while supporting circulation quality. This replacement is often chosen when the original cartridge is heavily loaded, damaged, softened by age, or no longer filtering effectively