Hayward Manual Air Relief Assembly | DEX2420MAR2Product Overview The Hayward DEX2420MAR2 Manual Air Relief Assembly is a genuine Hayward replacement part designed to help safely release trapped air from compatible pool filter systems. Installed at the top of select Hayward DE and cartridge filters, this assembly allows the filter tank to be manually vented during startup, servicing, and normal maintenance. By helping remove built up air from the filter, the DEX2420MAR2 supports proper circulation,

2" Full-Flow Plumbing

Replacing single-speed

energy efficiency

A: Yes — the LED design uses significantly less power than traditional spa lighting while providing bright illumination

Get your IntelliChem system back online without replacing the entire controller

The Pentair 77707-0253 kit is an essential component for maintaining your heater’s peak performance

The factory-attached 100 ft cord provides flexible installation reach for many residential pool layouts and junction-box locations

reducing need for major plumbing modifications

This high-performance pool vacuum is specifically engineered for inground pools

Watertight Installation: Helps maintain a secure

Includes four Pentair MicroBrite Color LED lights

The Rebel V2 is designed with a compact two-wheel body