Hayward DEX2420MAR2 Air Relief Assembly – Manual Vent for DE/Cartridge Filters

The Hayward DEX2420MAR2 is the professional’s choice for keeping your pool’s filtration system running at peak performance. This genuine replacement air relief assembly is specifically designed to safely release trapped air from your filter tank, preventing high-pressure air pockets that can strain your equipment. By ensuring your system is properly bled, you help extend the life of your filter grids or cartridges while maintaining optimal water flow throughout your pool.

This upgraded assembly features a high-visibility, back-mount pressure gauge that takes the guesswork out of pool maintenance. It provides an instant, accurate reading of your system’s internal pressure, clearly signaling when it’s time to backwash or clean your filter. The user-friendly manual relief valve allows for a quick, quarter-turn air purge, making it easy to prepare your system for seasonal openings, closings, or routine filter element servicing.

Built with Hayward’s legendary focus on durability, the assembly is constructed from high-impact, corrosion-resistant materials that stand up to harsh chemicals and outdoor conditions. It comes as a complete kit, including the essential O-ring for a secure, leak-proof seal right out of the box. Compatible with both Pro-Grid Vertical Grid DE and SwimClear Cartridge filters, the DEX2420MAR2 offers the perfect balance of safety, precision, and long-term reliability for your pool care routine.