Hayward Manual Air Relief Assembly | DEX2420MAR2 Pool Skimmers By providing a dedicated path

By providing a dedicated path for both combustion air and exhaust

promoting a cleaner and more enjoyable spa environment for every soak

the tube bundle may be past its service life

Precisely sized for a 5/8 inch opening to ensure a secure fit around vent sleeves

Hayward Manual Air Relief Assembly | DEX2420MAR2 Pool Skimmers By providing a dedicated pathWhat This Part Is Used For The Hayward DEX2420MAR2 Manual Air Relief Assembly vents trapped air from compatible Hayward DE2420 filter tanks. It allows safe pressure release during operation and maintenance. Why This Part Matters A faulty air relief assembly can cause pressure fluctuations and trapped air inside the tank. Replacing it restores proper venting and safe filter operation. This helps maintain steady filtration performance. Key Features and