Swimables 3/4" Stainless Air Vent for FNS Plus Clarifiers & Enzymes When standard cleaners are not

When standard cleaners are not enough

With 68% calcium hypochlorite

Built to withstand constant pressure and chemical exposure

Verifying the effectiveness of phosphate removal treatments

Swimables 3/4" Stainless Air Vent for FNS Plus Clarifiers & Enzymes When standard cleaners are notKey Fit and Function Releases Trapped Air from Filter Tank Designed to safely vent trapped air during startup, preventing pressure buildup and ensuring proper filter operation Compatible with FNS Plus & Nautilus Filters Fits Pentair FNS Plus and Nautilus style pool filters that use a 3 4" air vent connection 3 4" Threaded Replacement Fit Matches original thread sizing for straightforward replacement without plumbing modifications Stainless Steel