The Waterco Baker Hydro HRV tank lid is designed for compatible filter applications where the main lid section needs replacement. A tank lid is useful because it closes and protects the top of the vessel while providing access for service, inspection, or internal component replacement when needed.This replacement is especially useful when the original lid is cracked, warped, damaged around the sealing area, or no longer worthy of reuse. A fresh lid can restore both service confidence and the finished appearance of the filter assembly.The 6220204 is a practical repair part when a compatible Baker Hydro HRV filter needs its tank lid restored for cleaner closure and more dependable service access. Waterco Baker Hydro HRV tank lid Designed for compatible filter vessel closure applications Helps restore proper top closure and service access Useful when the original lid is cracked or worn Supports a cleaner and more dependable rebuild