Davey - Air Relief Tube Screen for Crystal Clear ER 225/270 Cartridge Filter - 33377

Davey – Air Relief Tube Screen for Crystal Clear ER 225/270 Cartridge Filter

This is the genuine Davey replacement screen for the air relief tube fitted to the Crystal Clear ER 225 (DCC225EU) and Crystal Clear ER 270 (DCC270EU) cartridge filters. The screen protects the air relief tube from debris, ensuring reliable automatic air venting and safe manual de-pressurisation of the filter tank. It is typically replaced when the screen becomes cracked, clogged, or damaged — or during a full service of the air bleed assembly.

Compatibility

This part is designed specifically for the Davey Crystal Clear ER Series cartridge filters in the 225 sq ft and 270 sq ft sizes (models DCC225EU and DCC270EU). These are twin-cartridge units rated to a maximum operating pressure of 250 kPa. Always verify your model number before ordering to ensure correct fitment.

Function & When to Replace

The air relief tube screen prevents debris from entering and blocking the air bleed tube, which is responsible for releasing trapped air from the filter tank automatically during pump operation and manually before the lid is opened for cartridge cleaning. A blocked or damaged screen can impair air release, lead to pressure build-up, or make safe tank opening more difficult. Replace it if you notice restricted air flow from the bleed valve, visible screen damage, or as part of routine filter maintenance.

Why Genuine Matters

Using the genuine Davey part guarantees correct dimensional fit, material compatibility with pool water chemistry, and compliance with the filter’s original pressure-rated design. Genuine Davey spare parts help maintain the integrity of your Crystal Clear ER filter and protect your warranty coverage.