Pentair 25021-0003 System3 Air Bleed Tube

Genuine Pentair replacement air bleed tube for System3 modular media filters

This OEM air bleed tube provides reliable venting for Pentair System3 modular media filters. Designed to ensure proper air removal from the filter tank for improved circulation and consistent pool water quality.

Compatible with the following System3 modular media filters

• S7M120
• S7M400
• S8M150
• S8M500

Key features

• Direct OEM fit for Pentair System3 filters
• Durable material formulated for long service life in pool environments
• Simple drop in replacement to restore proper air bleed function
• Part number 25021-0003 for easy identification

Installation tips

• Turn off pump and relieve pressure before servicing filter
• Remove old tube and clean the bleed port before installing new tube
• Seat the tube securely to prevent air leaks
• After installation, prime the system and check for proper venting and leaks

Why replace the air bleed tube

Worn or damaged bleed tubes can allow air to remain trapped in the filter tank. Replacing this small component can help restore normal filter performance reduce noise and protect pump health.

What is included

• One OEM Pentair air bleed tube part number 25021-0003

Need help

Contact our parts team with your filter model and serial number if you need assistance confirming fitment or completing installation.