The Hayward Perflex tank lid is designed for compatible EC65 and EC75 filter applications where the top cover needs replacement. A tank lid is useful because it helps seal and protect the filter chamber while allowing access for internal service and maintenance when needed.This replacement is especially useful when the original lid is cracked, leaking, damaged, or no longer seating correctly. Matching the correct EC65 and EC75 compatible lid helps preserve intended fit and restore dependable filter closure.The ECX11194AT is a practical service part when a compatible Hayward Perflex filter needs a lid to restore dependable tank coverage. Hayward Perflex EC65 and EC75 tank lid Designed for compatible DE filter applications Helps restore proper filter-tank closure Useful when the original lid is damaged or leaking Supports cleaner and more dependable filter service