273550 | Pentair FNS Nautilus Plus SM & SMBW 4000 Series Filters Manual Air Relief Hayward navigator Wing This O-Ring is specifically designed

This O-Ring is specifically designed to ensure an airtight seal within your filter apparatus

and organic materials in spa water

the side of filter after passing between the filter Housing and the Locking Ring

Reliable Connection Assurance: Compatible with standard PVC adhesives for strong

walk-in techs use R0807205 for impeller swaps and motor servicing

273550 | Pentair FNS Nautilus Plus SM & SMBW 4000 Series Filters Manual Air Relief Hayward navigator Wing This O-Ring is specifically designedOEM Pentair 273550 Manual Air Relief Assembly is designed to safely vent trapped air from your pool or spa filtration system, helping prevent pressure related issues and supporting consistent filter performance. This air relief unit includes a manual release valve and pressure gauge and is specifically compatible with Pentair FNS, Nautilus Plus, SM, and SMBW 4000 series filters. Constructed from rugged materials for durability in demanding aquatic