Silicone Gasket for Hayward, Goldline, CompuPool, and Simple Cell Salt Chlorine Generators (Set of 2) Used with Hayward, Goldine, CompuPool, and Simple Cell Salt Generators Fits Hayward and Goldline saline generating systems Used to prevent leaking connection at unions. Manufactured by Optimum Pool Technoligies for long life Used with Replacement T-cell Union O-Ring and part numbers o-43 and GLX-UNION-ORING Hayward T-15 (Including Optimum Pool Technologies Simple Cell), T-9, T-5, &amp; T-3 Pentair IntelliChlor IC-60, IC-40, IC-20, &amp; IC-15