Pentair Manual Air Valve with Clamp | Nautilus D.E. Filter | 261003 Cannot Sell Online this cartridge delivers exceptional fine

this cartridge delivers exceptional fine filtration in the tight geometry of the Eco-Pur filter housing

Premium efficient BPM w/ control

Will Test pH from 7

They feature a dial handle for easy flow regulation and visual indication of valve setting

Pentair Manual Air Valve with Clamp | Nautilus D.E. Filter | 261003 Cannot Sell Online this cartridge delivers exceptional fineThe Pentair Manual Air Valve (261003) is the OEM replacement manual air relief assembly for Pentair Nautilus pool and spa D. E. filter models NS24, NS36, NS48, NS60, NS72 originally manufactured under the PacFab and Purex brands, now part of the Pentair portfolio. This manual air relief assembly releases trapped air from the filter tank, maintaining proper water flow and filtration efficiency. A correctly functioning air relief valve allows you to