prototype

1/2" PVC ball valve
1/2" PVC pipe >= 5'
3/4" PVC ball valve
3/4" PVC pipe 1'
1/2-3/4-1/2 PVC T
1/2" to 3/4" PVC adapter
1/2" PVC slip to MPT adapter
1/2" PVC FPT cap
3/4" ball valve blocker
1/2" to air hose male