Pentair Admiral S15/S20 Skimmer Extension Collar 85002300

This extension collar is best for in-ground pools with Pentair Admiral S15 or S20 skimmers undergoing resurfacing, new decking, or coping upgrades. It’s especially useful when the finished pool surface ends up higher than the original skimmer opening. Builders and remodelers rely on it to maintain proper waterline control without replacing the entire skimmer.
Best for: Pool remodels, resurfacing projects, raised deck heights
Not ideal for: Non-Admiral skimmers or other Pentair skimmer models

Compared to makeshift spacing or custom modifications, the Pentair 85002300 collar offers a factory-engineered solution that maintains structural integrity. It aligns precisely with the skimmer throat and faceplate, reducing the risk of leaks or misalignment.
Pro Tip: Always replace the skimmer faceplate gasket when installing an extension collar to ensure a proper seal and prevent water intrusion behind the pool wall.

In real pool remodels, this extension collar consistently restores proper skimmer function after surface height changes. Water levels stabilize, surface debris removal improves, and the skimmer face sits clean and flush with the finished pool. It’s a small part that prevents big performance issues. Backed by ShastaPoolSupply.com’s expert guidance, fast shipping, and trusted pool industry experience, this collar is a must-have for Admiral skimmer upgrades.