Replacement drain cap, part number 154712, for Sand Dollar SD 35 and SD 40 mount pool and spa sand filters. Designed as a direct replacement for worn, cracked, or leaking drain caps to restore a reliable seal and proper filter operation. Key benefits Stops leaks and prevents water loss by replacing cracked or failing drain caps. Durable construction reduces risk of stripped or broken threads for longer service life. Simple handtighten installation saves time and does not require special tools. Direct replacement fit for SD 35 and SD 40 mount sand filters, making repairs fast and straightforward. Features Compatibility: Part number 154712 replacement for Sand Dollar SD 35 and SD 40 mount pool and spa sand filters. Function: Seals the drain fitting on sand filters to prevent leakage and allow controlled draining when needed. Material: Made from heavy duty plastic for strength and resistance to thread damage. Design: Threaded drain cap assembly that can be hand tightened or loosened for quick access to the drain. Performance: Reliable sealing after replacement, eliminating persistent leaks from damaged caps. Practical applications Seasonal maintenance: a worn drain cap when opening the pool to ensure the filter holds water and operates correctly. Leak : Swap in the cap if the existing cap shows cracks, leaks, or stripped threads to stop water loss. Draining and servicing: Use the threaded cap to seal the drain during normal operation and remove it easily when you need to partially drain the filter for cleaning or winterizing. What you get A readytoinstall threaded drain cap assembly that serves as a direct replacement for damaged or leaking caps on compatible mount sand filters, restoring a secure seal and simple, tool operation.