Hayward Air Relief Assy, Swim-Clear/Pro-Grid, Manual, 2007+ (DEX2420MAR2) ozone 0 THP pre-2004 applications where

0 THP pre-2004 applications where the original impeller has cracked

Helps support easier routine water monitoring

Useful when original topsides are worn or unreliable

and Balboa 5-Button Digital Standard Topside Panel Overlay (10298) helps support that by keeping your system working the way it should

Useful when replacing a worn or unresponsive large-format topside

Hayward Air Relief Assy, Swim-Clear/Pro-Grid, Manual, 2007+ (DEX2420MAR2) ozone 0 THP pre-2004 applications whereAn air relief assembly helps release trapped air from a compatible filter system so the unit can operate more efficiently and predictably, and this Hayward manual version is designed for Swim Clear and Pro Grid applications from 2007 forward using the DEX2420MAR2 reference. Air relief components are important because air buildup can affect startup behavior and overall filter performance. This assembly has practical value because it is matched to