Keep your pool filter and pump leak and ready for service with this set of 10 black drain plugs. Designed for simple installation and reliable sealing, these 1/4 inch male threaded plugs are a convenient replacement or spare set for maintenance and winterizing. Key benefits Secure seal for filter and pump drain ports to prevent leaks during operation and storage. Readytoinstall 1/4 inch male thread fits common filter drain fittings and threads smoothly for a tight fit. Pack of 10 provides spares for multiple filters, pumps, or backup storage so you are prepared for maintenance or seasonal shutdown. Black finish for a discreet look that blends with most pool equipment. Product highlights Function: Caps and seals pool filter drain ports and pump pipe openings to stop water loss during use and when preparing equipment for winter. Compatibility: Compatible with CL Series cartridgestyle filters and similar models that use a 1/4 inch male drain thread. Size: 1/4 inch male threaded plug; standard sizing for many filter drain fittings. Quantity: 10 pieces per pack for replacements, spares, or multiple units. Practical use scenarios Winterizing: Install plugs before draining and storing equipment to prevent residual water from leaking and to make controlled winter shutdown easier. Routine maintenance: worn or missing drain plugs during filter cleaning or pump servicing to maintain proper sealing and avoid unexpected leaks. Spare parts kit: Keep a set in your pool equipment toolbox for quick replacement after servicing or when preparing equipment. Reliable, easy to use, and sold as a 10 piece set to cover maintenance needs and backups. Check thread size to confirm compatibility with your filter or pump drain port before .