The Genuine Hayward SPX1091K1 Above Ground Skimmer Weir Door is a replacement part specifically designed for Hayward SP1091LX and SP1091WM skimmer models. Made by the trusted brand Hayward, this skimmer weir door is perfect for above ground pools and includes the necessary components for installation. This product ensures a proper fit and function for maintaining the water circulation and filtration in your pool.