Compatible with multiple Pentair filters: Clean and Clear Plus Filters (CCP240, CCP320, CCP420, CCP520), Quad DE Filters (Quad 60, Quad 80, Quad 100), and FNS Plus Filters (FNSP24, FNSP36, FNSP48, FNSP60). Designed to match original fit and function for reliable pool filtration performance. Key benefits Restores a secure seal quickly: replaces worn, cracked, or missing drain plugs to stop leaks and maintain proper filter pressure. Built for durability: heavyduty plastic construction resists cracking, wear, and damage from routine use and exposure to pool chemicals. Protects threaded connections: reinforced threading reduces the risk of stripped or broken threads during removal and installation. Complete assembly: includes the drain cap and a drain plug Oring to ensure a proper seal and simplify installation. Features and performance Material: quality, heavyduty plastic engineered for long service life in pool and spa environments. Function: threaded drain plug designed to open and close for easy draining and maintenance while maintaining a tight seal when installed. Compatibility: fits the specific filter models listed above to ensure correct fit and operation without modification. Typical applications Seasonal maintenance: remove and the plug when winterizing or draining the filter for storage and service. Routine filter servicing: use during cartridge or DE element cleaning to allow controlled draining and prevent water loss. Emergency : install as a direct replacement if the original plug is lost, damaged, or leaking. What you get One complete drain plug assembly including drain cap and Oring, ready for immediate installation and longlasting use. Practical notes Confirm your filter model against the compatibility list before . Handtighten to engage the Oring seal; avoid overtightening which can stress threads.