Pentair Skimmer Collar | WC37-503P San Juan Color Change: Copper will evolve

Color Change: Copper will evolve to a blue/green hue over time with exposure to natural elements

Cracked or warped covers can cause suction leaks and loss of prime

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

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

and worry-free relaxation every time you soak

Pentair Skimmer Collar | WC37-503P San Juan Color Change: Copper will evolveWhat 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