About This

• Wide Compatibility with Hayward SwimClear cartridge filters: Fits C2020, C2025, C3020, C3025, C4020, C4025, C5020, C5025, C7000, C2030, C3030, C4030, C5030, C7030.
• Compatibility with Hayward Pro-Grid: Fits DE2420, DE3620, DE4820, DE6020, DE7220 pool filter systems as a swimclear filter seal and pro grid filter seal.Compatibility with Blue Haven: Fits C4530BHMB, C5530BHMB.
• Replacement number: DEX2420Z8A, O-514KIT, 17-150-1304, HAY-051-1378,HAYDEX2420Z8A
• Product Information:Product Information:Includes a dex 2420z8a o-ring kit set of 2 o-rings.The large O-ring inner diameter approximately 4.29 in, and the small O-ring inner diameter approximately 3.43 in.
• High-quality Materials: The DEX2420Z8A exhaust valve O-ring is made of wear-resistant, high-temperature-resistant nitrile rubber. It boasts excellent durability and abrasion resistance, maintaining stable performance even in harsh swimming pool environments.
• Leak-Proof Sealing Design: Specifically designed for Hayward DEX2420Z8A air relief valves, this kit ensures a tight, reliable seal to prevent leaks, and reduce long-term pool and spa maintenance costs.
• Easy Installation: Turn off the water pump and release the filter pressure. Remove the vent assembly, take out the old O-ring, and apply a small amount of silicone lubricant (not included). Press the new O-ring evenly into the groove, then reassemble and tighten. Restart the system and check for leaks.