Pentair Spa/Pool Replacement Filter Cartridge (R173216) laingthermotech Helps simplify larger rigid plumbing

Helps simplify larger rigid plumbing layouts

This BP7 Retro Spa Control System is designed for that stage of ownership

The Waterco 4-1/2 inch lateral is designed for compatible Baker Hydro

Carbon replacement for compatible DEL Ozone MDV applications

Pentair Spa/Pool Replacement Filter Cartridge (R173216) laingthermotech Helps simplify larger rigid plumbingThe 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