Pentair Skimmer Collar | WC37-503P San Juan when needed

when needed

Whether you're upgrading a worn unit or stocking up for routine maintenance

4/7" and 5/8"

This replacement part helps maintain reliable circulation and system performance during professional pool service

A protective cap covers the socket when not in use

Pentair Skimmer Collar | WC37-503P San Juan when neededWhat This Part Is Used For Pentair WC37 503P Skimmer Collar is a replacement collar for compatible Pentair skimmer assemblies. It supports proper alignment and sealing between the skimmer and pool structure. Why This Part Matters A damaged collar can lead to leaks around the skimmer throat. Replacing it restores secure positioning and helps prevent water intrusion behind the pool wall. Proper fit supports long term structural integrity. Key Features