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Pentair

Pentair Admiral S15/S20 Skimmer Extension Collar 85002300

Pentair Admiral S15/S20 Skimmer Extension Collar 85002300

$14.51 USD
$14.51 USD
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Pentair Admiral S15/S20 Skimmer Extension 85002300

When decking, coping, or resurfacing raises the finished pool height, an unextended skimmer throat can disrupt your water level. The Pentair Admiral S15/S20 Skimmer Extension Collar (85002300) solves this problem by extending the skimmer opening to your new surface elevation.  Shasta Pool Supply offers fast shipping on Pentair Skimmer parts.

What is the Pentair Admiral Collar used for?

The Pentair 85002300 extension collar is used to raise the height of an existing Admiral skimmer after resurfacing, decking, or coping changes. It ensures the skimmer opening sits flush with the new pool finish. This allows water to flow correctly into the skimmer. 

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Key Features

  • Designed specifically for Pentair Admiral S15 and S20 skimmers
  • Restores proper skimmer height after resurfacing or decking
  • Ensures correct water level and efficient surface skimming
  • Durable construction for long-term, leak-resistant performance
  • Clean fit that preserves finished pool aesthetics

Technical Specifications

  • Brand: Pentair
  • Part Number: 85002300
  • Compatibility: Pentair Admiral S15 & S20 skimmers
  • Application: Skimmer throat height extension
  • Installation: Fits between skimmer body and faceplate

Specs

  • Part Number: 85002300
  • Manufacturer: Pentair

Best For: Ideal Pool Types & Conditions

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

Expert Comparison & Pro Tips

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.

Our Expert Verdict: Real-World Results

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.

How do I know if I need a skimmer extension collar?

If your pool has been resurfaced, re-tiled, or had new decking installed and the skimmer opening now sits too low, an extension collar is required. Signs include poor surface skimming, inconsistent water levels, or a skimmer faceplate that no longer sits flush. Installing the correct Pentair extension collar restores proper function without replacing the skimmer. It’s a standard best practice during remodels.

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