Pentair System3 S7M400 Inner & Outer Cartridge Pack (170146) 2345valves or no longer controlling flow

or no longer controlling flow direction correctly

giving users a practical way to soak and service the cell without improvising a support setup

Heavy-duty handle assembly for compatible Maytronics Dolphin cleaner applications

Front access design

Pentair System3 S7M400 Inner & Outer Cartridge Pack (170146) 2345valves or no longer controlling flowRestore filtration performance in compatible System 3 modular cartridge filters with this genuine Pentair Pool Products S7M400 inner and outer cartridge pack, part 170146. 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