Ideal for pool owners, maintenance technicians, and commercial facilities requiring leakproof solution for automatic skimmers in residential or public environments Outperforms standard rubber gaskets with 50% extended lifespans, reducing replacement frequency while safeguarding pool hygienes and pumps in harsh conditions Rubber construction ensures heat / resistance and long term flexibility, featuring exact 13.8x7.5inch dimensions for seamlessly compatibility with automatic ground pool skimmers 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 Perfectly seals wide mouth butterfly skimmers during routine pool maintenance, seasonal equipment upgrades, or urgent repairs to restores water filtrations efficiency