Features: Engineered with a precisions molded silicone butterfly design, this wide mouth skimmer gasket eliminates leaks and maintains sealing up to 100PSI for SPX1091GW/SP1091LX pool systems. Rubber construction ensures heat/corrosion resistance and long term flexibility, featuring exact 13.8x7.5inch dimensions for seamlessly compatibility with automatic above ground pool skimmers. Ideal for pool owners, maintenance technicians, and commercial facilities requiring leakproof solution for automatic skimmers in residential or public environments. Perfectly seals wide mouth butterfly skimmers during routine pool maintenance, seasonal equipment upgrades, or urgent repairs to restore water filtrations efficiency. Outperforms standard rubber gaskets with 50% extended lifespan, reducing replacement frequency while safeguarding pool hygienes and pump performances in harsh conditions. Specifications: Material: Rubber Color: White Applicable Model: Suitable for SPX1091GW, SP1091LX, SP1091WM Above-Ground Pool Oil Skimmer Size: Approx. 13.8x7.5inch(35x19cm) Package Includes: 1x Pool Skimmer Washer note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.