Wetherell Manufacturing Co. PO Box 188, 407 W Grace Street , Cleghorn , Iowa 51014 USA About Solutions products Companies Wetherell Manufacturing Co. Products Wetherell - Complete Doubler Valve Wetherell - Complete Doubler Valve 0 Share Save valuable time with this handy product from Wetherell Mfg. Turn 1 hydraulic outlet into 2, no more jumping off the tractor to switch hyd hoses, just flip a switch in the cab! More about Complete Doubler Valve Customer reviews No reviews were found for Wetherell - Complete Doubler Valve. Be the first to review! Add your review Publish your review Great! review successfully added!