Check the listing for details. 1950 "MER-COID" NOS Steam Regulating Pressure Switch No Box. Condition: New. Listed at 175.00 USD. This is an original vintage NOS Mercoid Corporation In Chicago Illinois 1950 Steam pressure regulator no box. This switch is an original and has everything it is supposed to have except for the box. It has the original instructions and the lock key for the valve to be locked. It measures 5 13/16" across the face and 5 5/8" across the back and it is 2 3/16" thick with a 1/2" threaded brass nipple. View the pictures and ask any questions.
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