PENTAIR 6" FNS High Flow Manual Air Relief Valve for FNS D.E. Filter 98209804 sponge low-profile design allows the earmuff

low-profile design allows the earmuff to fit nicely under 3M™ Speedglas™ 9100 Series and other welding helmets

It has outstanding resistance to oil

Advanced mono-layer technology

Pouch design boasts an expansive breathing chamber for maximum comfort

Cleans up vandalized pools

PENTAIR 6" FNS High Flow Manual Air Relief Valve for FNS D.E. Filter 98209804 sponge low-profile design allows the earmuffThe Pentair 98209804 is a 6" FNS High Flow Manual Air Relief Valve for FNS D. E. Filter. Air Relief Valves are essential for reducing pressure within a filter. It is a genuine Pentair product. Genuine OEM Pentair Replacement Part Universal High Flow Manual Air Relief Valve Replacement