The Hayward DEX2420MAR2 Manual Air Relief Assembly is an essential part of maintaining a healthy and functional pool filter system. This assembly helps to ensure that your SwimClear(TM), HCF Series Cartridge Filters, or Pro-Grid(TM) Vertical Grid DE Filter won't become overpressured, which can cause significant damage to the filter. Made of high-quality materials, this easy-to-install assembly is a genuine Hayward replacement part.

• Easy to install
• Relieves pressure in the system
• Made of high-quality materials
• Genuine Hayward replacement part

Fitment guidelines:
For use with SwimClear(TM) and HCF Series Cartridge Filters and Pro-Grid(TM) Vertical Grid DE Filters

Additional Information:
Alternate part numbers - 17-150-1308, DEX2420MAR, HAY-051-2420, HAYDEX2420MAR2