Pentair Back-Up Ring, Standard 10 Hole Pattern || 634595 Hayward Sand Filters Inspect the AVSC channel drain

Inspect the AVSC channel drain body before replacing the cover

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The integrated manual air relief valve simplifies air evacuation from the filter tank

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Pentair Back-Up Ring, Standard 10 Hole Pattern || 634595 Hayward Sand Filters Inspect the AVSC channel drainPentair Back Up Ring, Standard 10 Hole Pattern 634595 Pentair Back Up Ring, Standard 10 Hole Pattern 634595 Premium Replacement for Pentair Large Stainless Steel Niche Buy at ePoolSupply. com Authorized Pentair Reseller. Ensure your Pentair lighting fixture is operating at its peak performance with the Pentair Back Up Ring. Specifically designed for the Pentair Large Stainless Steel Niche, this replacement part is made with high quality materials to