Valve, Zone, 3 Way Diverting, 1/2', 12', Sweat, 24Vac,, 1/2" sweat, 3 way diverting zone valve, 24v, spring return, used in closed loop hydronic systems, 20 pound max close off, brass body, stainless steel stem, brass seat, 18" lead wires, manual opener, 4cv, normally open spst auxiliary switch