Pentair StaRite S7M120 Inner/Outer System Filter Cartridge (170145) hammerhead helping hold the filter components

helping hold the filter components together in the correct position

Designed for handrail and ladder finishing applications

Round 8 inch style with 2 inch socket connection

Designed to support efficient water transfer

stable performance the system depends on

Pentair StaRite S7M120 Inner/Outer System Filter Cartridge (170145) hammerhead helping hold the filter componentsRestore filtration performance in compatible System 3 modular cartridge filters with this genuine Pentair Pool Products S7M120 inner and outer cartridge pack, part 170145. The paired cartridge design provides the correct replacement media set for systems that rely on both inner and outer elements to capture fine debris. Use this pack when cartridges are heavily stained, damaged, pleats are collapsed, or cleaning no longer restores flow. Replacing both