Nason, 195 degree, Normally Open, Hydraulic, Fan, Switch, 3/8 npt, Prochem Truckmount NOS $20.00
New Old Stock 195 degree Nason Switch that is wired normally open. (that means no current flows through the switch until it reaches 195 degrees farenheit) These are industrial quality switches that were used in the production of a hydraulic truckmounted carpet cleaning machine for the regulation of hydraulic oil temperature. They would cost over $100.00 dollars if purchased new.