Both the flange and the waste receptacle portion of the unit are made of type-304

U-packing seal and duckbills

Flexible: Adjusts between two speeds to control airflow and sound level

EPDM liner

18 Gauge CuVerro Antimicrobial Copper 22' x 22' x 5

Val-Matic 175 psi Clean Water Air Release Valve, 1 in Inlet Size, 1/2 in Outlet Size - 15A.3 Bulk Soap Dispensers Both the flange and theAir Release and Air Vacuum Valves, Max. temp.: 250F Vacuum pressure: 29 Hg FNPT connection,Cast iron construction. Float and internal components are 316 stainless steel.,Air Release Valves,Resilient seal for positive shutoff. Nonclogging design helps eliminate backwash. Releases pockets of accumulated air in a pressurized water system. Suitable for use in water distribution and transmission fire pumps, pressure filters, and hydropneumatic tools.