Utility Valve with Contact Points Part#613A
Valve fits into PVC Vacuum Pipe Connectors such as a coupling or 90-degree elbow (1 11/16 OD, and 1 3/8" ID). The opening for the hose to go into is 1.5 inches ID, and the widest diagonal section is 2.5 inches OD. Low voltage wire is ran from the valve to the low voltage leads any central vacuum. Now the on/off switch on the end of the vacuum hose will work!