Pentair Black Manual Air Relief Assembly | 273550Z

Pentair Black Manual Air Relief Assembly |  273550Z

OEM Pentair manual air relief assembly. Releases trapped air to maintain pressure and efficient filtration.

Features

• OEM replacement for Pentair FNS, Nautilus Plus, and SMBW 4000 series filters.
• Manual air relief valve removes trapped air from filter tank.
• Integrated pressure gauge for system monitoring.
• Improves filtration efficiency and startup performance.
• Durable construction for long service life.

Description

The Pentair Black Manual Air Relief Assembly is designed to maintain proper pressure and airflow inside your pool filtration system. By manually releasing trapped air, it helps ensure consistent water flow and efficient filtration performance.

This OEM Pentair assembly combines an air relief valve with a pressure gauge, allowing you to purge air and monitor system pressure in one unit. It is commonly used on Pentair FNS, Nautilus Plus, and SM/SMBW 4000 series D.E. filters.

Built for durability, it withstands exposure to pool chemicals and continuous pressure, making it a reliable replacement for worn or malfunctioning air relief assemblies.

Pro Tip

Always open the air relief valve during startup until water flows steadily. This prevents air pockets that can reduce filtration efficiency.

Installation Tips

Turn off system and relieve pressure before installation. Thread assembly securely and ensure gauge is visible for easy monitoring. Do not overtighten.

We want you to have quick and easy access to warranty information for all the brands we carry. Please click on the links below to view each manufacturer’s warranty page:

• Pentair Warranty
  
• A&A (Pentair In-Floor) Warranty
  
• Fluidra Warranty (Zodiac / Jandy / Polaris / Caretaker)
  
• Paramount Warranty
  
• BlueSquare Warranty
  
• Hayward Warranty
  
• All Other Manufacturer Warranties
  

Note: Warranty coverage, registration, and service terms are provided directly by the manufacturer. Please review the details carefully to ensure proper understanding of coverage and claim procedures.