Part Number: CXFHR1001 filter head O-ring. Also fits RGX45G and HAY-051-640. Dimensions: approximately 291mm inner diameter, 7.1mm wire diameter
Fits Multiple Hayward Models: Compatible with SwimClear cartridge filters C100S (100 sq ft), C150S (150 sq ft), C200S (200 sq ft); ASL filters C850, C1250; and ReGenX grid DE filters RG450, RG700
O-Ring Function: Creates a watertight seal between the filter head and canister. A properly sealing O-ring maintains system pressure, prevents leaks, and ensures efficient filtration by keeping water flowing through the filter media
Grease Included: Comes with assembly grease. Applying a thin coat helps hold the O-ring in place during installation, prevents rolling or pinching, and improves initial sealing before system pressure builds
Black Nitrile Rubber: Made from Buna-N (Nitrile) material suited for pool chemical exposure. Formulated to resist compression set and maintain seal over time
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