CXFHR1001 Pool Filter Head O-Ring Compatible with Hayward Filters — Open-Box, 9% Off

【Part Number and Size】 CXFHR1001 filter head O-ring seal with approx. 11.48 in inner diameter, also cross-referenced as RGX45G and HAY-051-640. Designed for the filter head sealing position on listed pool and spa filtration systems, helping restore sealing contact after filter cleaning, head removal, or seasonal maintenance. 【Filter Compatibility】 Compatible with Hayward SwimClear C100S, C150S, and C200S cartridge filter systems. Also compatible with Hayward ASL C850 and C1250 filter systems, and compatible with Hayward ReGenX Grid DE RG450 and RG700 filter systems using the CXFHR1001 filter head O-ring. 【Premium Nitrile Rubber】 Made from premium nitrile rubber for pool filter sealing applications. The material helps maintain flexibility, compression recovery, and sealing contact under pool water exposure, pressure changes, outdoor equipment conditions, and repeated filter head removal during cartridge cleaning or system service. 【Filter Head Seal】 Installs in the filter head sealing groove between the filter head and filter tank body. This O-ring helps maintain system pressure, reduce water seepage around the filter head, limit air intrusion at the upper seal area, and support steady water circulation through compatible pool and spa filtration systems. 【Pool Service Use】 Designed for pool filter maintenance when water drips around the filter head, the system loses pressure after cleaning, air enters the tank, or leakage returns after the head is removed and reinstalled. Replacing a flattened, hardened, or worn CXFHR1001 seal helps restore the head-to-tank seal during cartridge cleaning, pool opening, pool closing, and routine backyard or in-ground pool service. 【Why Choose Our O-Ring?】 -Precision-fit for Hayward filter heads -Durable EPDM rubber for long-lasting performance -Easy, step-by-step installation process -Cost-effective DIY pool filter maintenance solution -Compatible with a wide range of Hayward filter models

CXFHR1001 filter head O-ring seal is designed for compatible pool and spa filtration systems using the CXFHR1001 sealing specification. It has an approx. 11.48 in inner diameter and is also cross-referenced as RGX45G and HAY-051-640.

Compatible with Hayward SwimClear C100S, C150S, and C200S cartridge filter systems. Also compatible with Hayward ASL C850 and C1250 filter systems, and compatible with Hayward ReGenX Grid DE RG450 and RG700 filter systems that use the CXFHR1001 filter head O-ring.

The O-ring installs in the filter head sealing groove between the filter head and filter tank body. It helps maintain sealing contact at the upper filter connection, supporting stable pressure and steady water circulation during normal pool filtration.

Made from premium nitrile rubber, this seal helps maintain flexibility and compression recovery under pool water exposure, pressure changes, outdoor equipment conditions, and repeated filter head removal during cartridge cleaning or system service.

A worn filter head O-ring can cause water seepage around the lid or head area, slow drips after filter cleaning, air intrusion, unstable pressure, or recurring leaks after the filter head is removed and reinstalled. Replacing the CXFHR1001 seal helps restore the head-to-tank seal during pool opening, pool closing, cartridge cleaning, seasonal maintenance, and routine backyard or in-ground pool service. Package includes filter head O-ring seals only; filter tank, filter head, cartridge element, tools, and other pool equipment parts are not included.