Pentair Locking Flange, RTL | R172370 Tools this CMP flat plug helps

this CMP flat plug helps you block water flow quickly and securely without tools or complex installation

What this part does: It connects and adapts the heater stack section to the matching vent-side assembly

Weir Sylvan 7 5/8 in Replacement Weir — CMP Custom Molded Products 25141-350-000

Pentair R211084 Leaf Trap 186A - 1-1/2in

Pentair 263037 PVC Valve - 1-1/2in

Pentair Locking Flange, RTL | R172370 Tools this CMP flat plug helpsWhat This Part Is Used For Pentair R172370 Flange Locking RTL is a replacement locking flange component for compatible Pentair RTL filter systems. It secures the filter Assembly and maintains proper compression. Why This Part Matters A damaged locking flange can cause poor sealing and pressure loss. Replacing it ensures the filter housing remains properly secured during operation. It helps prevent leaks and uneven cartridge compression. Key Features