Pentair Spa/Pool Replacement Filter Cartridge (R173216) pooltool Supports accurate and dependable interface

Supports accurate and dependable interface connectivity

6" fitting size

CMP mini air control

IntelliFlo

Matching the correct model family helps preserve proper fit and supports a cleaner repair

Pentair Spa/Pool Replacement Filter Cartridge (R173216) pooltool Supports accurate and dependable interfaceThe 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