Pentair Spa/Pool Replacement Filter Cartridge (R173216) laingthermotech The white scalloped face gives

The white scalloped face gives this Waterway part a polished appearance that works especially well in lighter spa interiors or installations with white trim accents

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

Carbon replacement for compatible DEL Ozone MDV applications

Helps simplify larger rigid plumbing layouts

Supports cleaner and more complete pool-wall appearance

Pentair Spa/Pool Replacement Filter Cartridge (R173216) laingthermotech The white scalloped face givesThe 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