This pool plug is designed for 16 ft and smaller ground pools. It provides a wall plug replacement for ground pool filtration systems, including pumps in pools that do not have plunger valves. OEM designed, direct fit A direct replacement that fits and works exactly like the factory part. Engineered to fit easily into pool equipment, with installation that can be completed in minutes. Durable PVC construction Made from PVC, this plug is chillproof, compact, and easy to store. It does not take up space, and features good ductility and expansion to plug the spout firmly. Size and compatibility Fits 16 ft and smaller ground pools. Compatible with pool filter models 28270, 28271, 28272, 28273, 26700, 26702, and with models 1000 gph or smaller. Please confirm the size of the item before . Practical benefits Provides a reliable, easy to install plug for small pool setups; lightweight and portable for quick maintenance or spare use; designed to perform like the original part. Use scenarios 1) Replacing a worn or missing wall plug on a small ground pool filtration system, especially in pools without plunger valves. 2) Stocking a spare plug for seasonal maintenance on 16 ft or smaller pools to reduce downtime during filter servicing. 3) Carrying a compact plug to service calls or poolside maintenance for pumps rated up to 1000 GPH, ensuring a quick, secure seal. note Please confirm the item size before to ensure compatibility with your pool and pump system.