The Pentair 170028 air bleed tube assembly is a replacement internal component designed for Clean & Clear Plus 420 square foot cartridge filters and Quad D.E. filter systems. This assembly allows trapped air inside the filter tank to vent during startup and operation, helping maintain stable filtration pressure and efficient water flow through the filter media.

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Key Features

• Replacement air bleed tube assembly designed for Pentair Clean & Clear Plus 420 cartridge filters.
• Also compatible with Pentair Quad D.E. filter systems including the DE80 model.
• Allows trapped air to vent from the filter tank to maintain stable system pressure.
• Supports proper filtration performance by preventing air pockets inside the filter housing.
• Includes tube and air bleed components required for restoring the internal air relief system.
• Durable construction designed for long-term operation in pool filtration environments.

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Product Overview

The Pentair 170028 air bleed tube assembly is an important internal component used in Clean & Clear Plus 420 cartridge filters and certain Quad D.E. filters. Installed inside the filter tank, the assembly provides the pathway that allows trapped air to escape from the filtration system during startup and normal operation.

Proper air venting is essential for maintaining correct filter pressure and ensuring water flows evenly through the filter cartridges. If air accumulates inside the filter tank, it can reduce filtration efficiency and cause unstable pressure readings. Replacing a worn or damaged air bleed tube assembly restores proper air relief function and helps maintain reliable operation of the filtration system.