Pentair | 24800-0121 | PLM Air Bleed Assembly | Cartridge Filter Replacement

The Pentair 24800-0121 PLM air bleed assembly is a replacement internal component designed for Pentair pool and spa cartridge filtration 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 cartridges. Proper air removal supports consistent filtration performance and prevents pressure fluctuations within the system.

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Key Features

• Replacement PLM air bleed assembly designed for Pentair pool and spa cartridge filter systems.
• Allows trapped air to vent from the filter tank during startup and normal operation.
• Helps maintain stable system pressure and efficient water circulation through filter cartridges.
• Integrated screen helps prevent debris from entering the air relief pathway.
• Durable molded construction designed to withstand pool chemicals and filtration system pressure.
• Ideal replacement component when existing air bleed assemblies become clogged, worn, or damaged.

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Product Overview

The Pentair 24800-0121 PLM air bleed assembly is an important component used in Pentair cartridge filter air relief systems. Installed inside the filter housing, the assembly provides a pathway for trapped air to escape from the filtration chamber, helping maintain consistent system pressure and balanced water flow through the filter media.

Air buildup inside a filter tank can reduce filtration efficiency and cause irregular pressure readings. The air bleed assembly helps prevent these conditions by releasing air before it accumulates in the system. Replacing a worn or damaged assembly restores proper air venting and supports reliable operation of Pentair pool and spa filtration systems.