The silicone material used in these spa heater union gaskets offers excellent resistance to heat and chemicals, making them suitable for various hot tub and spa applications. Their precise design ensures a snug fit, reducing the risk of leaks and enhancing the overall efficiency of your heating system. These gaskets are easy to install, providing a for your maintenance needs. Features -Color:White -Material:Silicone -Size:7.50X5.30X0.50cm/2.95X2.08X0.20in -Good fit: designed to fit 2" spa hot tub heater cylinder gaskets, compatible with replacement parts -Secure and stable: keeps spa gaskets securely in place, preventing leaks and ensuring the stability of your hot tub components -Versatile application: ideal for assembling joints, pump wet end fittings, and gaskets between heaters and joints, making it a versatile tool for spa maintenance -Wide range of compatibility: compatible with other flow components, providing a wide range of replacement options -Leak prevention: essential for preventing leaks in spa pumps, hot tubs, or heater joints, ensuring your spa system operates smoothly and efficiently Package list: 4pcs hot tub gaskets