Pentair Spa/Pool Replacement Filter Cartridge (R173216) pooltool 6" fitting size

6" fitting size

Supports accurate and dependable interface connectivity

This version is especially useful when the original overlay is worn

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

Pentair Spa/Pool Replacement Filter Cartridge (R173216) pooltool 6" fitting sizeThe 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