273550 | Pentair FNS Nautilus Plus SM & SMBW 4000 Series Filters Manual Air Relief Hayward navigator Wing model 013812F

model 013812F

and are EPA-registered for safe use

and organic materials in spa water

Pour the necessary quantity of Swimtrine Plus into a plastic watering can and fill it with water

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

273550 | Pentair FNS Nautilus Plus SM & SMBW 4000 Series Filters Manual Air Relief Hayward navigator Wing model 013812FOEM 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