the model is the second largest in the 1-1/4-inch diameter options

To power the unit

Beveled frame hides rough opening

18 Gauge CuVerro antimicrobial copper 15' x 22' x 6' Single Bowl Top Mount Sink

Mounting: Bulkhead

Val-Matic 300 psi Clean Water Air Vacuum Valve, 3 in Inlet Size, 3 in Outlet Size - 103STK Width-20" the model is the secondAir 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 Vacuum Valves,Have high low pressure resilient seating. Full pipe size inlets and outlets help prevent clogging. For use in water distribution and transmission and vacuum protection. Suitable for all high points in pumping stations, venting and vacuum protection.