Pentair Air Bleed Assembly, for 420 CNC Plus | 170028 Waterco 25" ID hoses commonly used

25" ID hoses commonly used in CMP systems

The WGX1048BBLK vinyl ring with inserts is used to secure a vinyl liner around a Hayward suction outlet fitting

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Keep the mesh free of sharp objects or abrasive surfaces to prevent small snags

Plan your mounting layout to align with existing brackets or enclosure slots

Pentair Air Bleed Assembly, for 420 CNC Plus | 170028 Waterco 25" ID hoses commonly usedWhat This Part Is Used For The Pentair 170028 Air Bleed Assembly is used on compatible 420 CNC Plus filters to vent trapped air from the tank. It supports safe and consistent system pressurization. Why This Part Matters Air inside the tank can reduce filtration efficiency and cause inaccurate pressure readings. A damaged Assembly may leak under pressure. Replacing the air bleed restores dependable filter operation. Key Features and Specifications