ARG Air Relief Assy Replaces Hayward DEX2420MAR2 w/ Gauge | Filter Vent & Gauge | ARHDEX2 Hayward Backwash Valves Professional installation is recommended for

Professional installation is recommended for optimal performance and safety

high-capacity filtration with minimal maintenance

Durability: High-quality

OEM Pentair 270160 sight glass for MPV / backwash valves — lets you see water clarity during back-wash cycles

Its durable design guarantees long-lasting functionality in demanding environments

ARG Air Relief Assy Replaces Hayward DEX2420MAR2 w/ Gauge | Filter Vent & Gauge | ARHDEX2 Hayward Backwash Valves Professional installation is recommended forARG Air Relief Assembly Replaces Hayward DEX2420MAR2 with Gauge ARHDEX2 ARG ARHDEX2 air relief assembly replaces Hayward DEX2420MAR2. Combined manual vent and pressure gauge for top mounted pool filter air relief ports. Features Replacement air relief and gauge assembly for filters that originally used Hayward DEX2420MAR2 Manual vent lets you bleed trapped air from the filter tank on startup or after service Built in pressure gauge shows operating