The 2" Ridged Gaskets with O-Ring are crucial components in pool and spa heating systems, ensuring the efficient and leak-free operation of heaters. Made from high-quality materials, these gaskets are designed to provide a secure, watertight seal. The 2” size and built-in O-ring offer a perfect fit for Hydro-Quip heaters and other compatible systems. These gaskets prevent water leaks and help maintain the heating system's performance and longevity.