- Upgrade your pool maintenance with our 4/8 piece hole plug pool filter, providing ample replacements for daily use. - Perfect for pool enthusiasts, these plugs are designed for easy replacement and repair of wall valves, ensuring your pool operates efficiently. - Compatible with piston valve swimming pools, including models 28270-28273, 26700, 26702, and other related designs. These plugs effectively block pool drains, enhancing water retention and filtration. - Made from durable materials that maintain their form and effectiveness, these plugs prevent absorption and ensure a tight seal when installed. - Ideal for routine pool maintenance, emergency repairs, or seasonal preparation, these hole plugs are a practical solution for keeping your swimming pool in top shape. - Simplify your pool care with a reliable product that meets your needs for both function and compatibility, ensuring a seamless experience.