Product description: Material: PVC Color: blue Swimming pool wall plug size: Internal diameter: 1.1inches External diameter: 2.3 inches Height: 1.6 inch Package includes:4 x Pool Filter Plugs for Strainer Pump Pool Plugs: You will receive 4 packs of blue universal plugs for pump holes of swimming pool filter, compatible with INTEX above ground swimming pools, enough quantity for your daily use and replacement. Multi-use: this pump cap is suitable for Intex, Bestway, Coleman, above ground swimming pools, Summer Escape which do not have piston valves, you can use them to easily block the pool drain. Above Ground Pool Plugs: Replacement Parts for 530/1000 gph Pump Models or less, they are mainly used to replace pump filters, retain water while cleaning the pump filter. Proper size: Our pool plug has an outer diameter of 2.3 inches and an inner diameter of 1.1 inches. It is suitable for swimming pool pipes with a diameter of 1.14 inches which do not have piston valves. Quality Material: The swimming pool plugs are made of quality PVC, they are small and easy to store, they do not take up space, and at the same time they have good ductility and expansion, they can easily plug the spout firmly.