Pentair-Style Air Relief Valve

The SW-26-908 is a manual air relief valve that threads into the lid of Pentair-style pool filters to vent trapped air during startup and service.

Key Features

• Manual, hand-operated venting design
• Chemical-resistant plastic construction

Compatibility

• Pentair FNS Plus Cartridge Filter
• Pentair Quad DE Filter
• Pentair Clean & Clear and Clean & Clear RP (160354) Filters
• Pentair FullFloXF C Series (160448), 4000 (188625), and F Series (188621, 188616)
• Pentair Clean & Clear Plus Cartridge Filters EC-160301, EC-160332, EC-160340
• Pentair FullFloXF C620 High-Efficiency Cartridge Filter

What's Included

• O-Ring

Open the valve during startup to vent air until water flows steadily, then close it to resume normal filtration, and tighten only enough to seal since overtightening can damage the lid or valve threads.