Compatibility and Proper Size: our pool drain adapter is about 2.16 inches in height, and 1 inch in thread diameter, fits most 10 feet to 24 feet wound metal frame pools, and 6 feet to 18 feet easy set pools; Please note that does not fit all manufacturers' pools, please confirm the size carefully before placing an order Package Content: the package includes 4 pieces of above ground pool drain hose adapters; This number is sufficient for regular use and replacement; Have peace of mind knowing that you'll have spare connectors at your disposal whenever you need them Quality Material: made from lasting plastic material, the pool drain adapter to garden hose is designed to endure daily wear and tear, reliable and sturdy, serving you for a long time Easy Installation Process: the above ground pool drain adapter is easy to use; Its working principle involves a plunger pushing a flap open on the inside wall, the connectors' threads are designed to allow a garden hose to be connected to the outlet side, effectively channeling the drained water to a location of Practical Utility: the pool hose adapter serves a dual ; Besides effectively draining pool or spa water, they can also be applied to channel out water to nurture your flowers and in your garden; This makes it an good choice for every pool owner Colour:White Material:ABS Package Contents: 4 x Garden Hose Drain Plug Connector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.