The Hayward tank lid with clamp ring is designed for compatible C5020, C5025, and DE6020 filter applications where the upper tank closure needs replacement. A lid with clamp ring is useful because it helps secure and seal the filter tank while allowing access for internal maintenance and service work.This replacement is especially useful when the original lid or clamp ring is cracked, leaking, damaged, or no longer securing correctly. Replacing both parts together can help restore dependable tank closure and simplify service.The DEX6020BTC is a practical service part when a compatible Hayward filter needs a lid assembly to restore dependable sealing and top-side support. Hayward tank lid with clamp ring Fits compatible C5020, C5025, and DE6020 filter applications Helps restore secure tank closure and sealing Useful when the original lid or clamp ring is damaged or leaking Supports cleaner and more dependable filter service