Presair - Vacuum Switch, SPDT 1/8in, 25A, Adjustable 6-16in WC

VS12506E Field AdjustableVacuum Switch from PresAirTrol is Adjustable - set your vacuum at 6 - 16 inches of water. Field adjustable within the range, using the Philips head screw on the micro switch carrier. Single Pole Double Throw, 25Amps. EPDM Diaphragm can be mounted into a 9/16"" hole. Connects with 1/8"" male threads (which measure 3/8"" OD), and connects to 1/8"" clear vinyl tubing.