Replacement Pool Wall Plugs: 10 pack universal filters for above ground pool filters, use with swimming pool, above ground pool parts. The replacement accessories are suitable for private swimming pools. Easy to Use: This replacement hose cap for swimming pools without piston valves allows you to replace the filters in the pumps. These wall plugs are compatible with swimming pools without pistons to stop the water when changing filters and replacing filters in pumps. Note: This can make your pool work again if the original part is lost or broken. It can be used to plug the drain hole with good sealing performance. Color: Black Size: as shown Package Quantity: 10pcs > Note: The data is manual measurement, please allow an error of 1-3cm. Due to the difference between light and screen, there may be a certain color difference