Caleffi Automatic Filling Valves

1/2" NPT Male Union IN By 1/2" FNPT out Automatic Filling Valve w/ Gauge (553642A)

1/2" NPT Female Union in By 1/2" FNPT out Automatic Filling Valve w/ Pressure Gauge (573012A)

1/2" NPT Female Union in By 1/2" FNPT out Automatic Filling Valve (573002A)

1/2" Sweat Union in By 1/2" FNPT out Automatic Filling Valve (573009A)