Special Features:

Item includes 1 body of copper-nickel alloy; 2 sight glasses; 2 tin brz retaining nuts; 2 synth rbr 0-rings; 2 gaskets non asbestos 2.12 od x 1.75 id x .125 thk; swldg conn designed to mate with .137 nom (.120) wall tubing

Properties:

An item so designed to have a portion or all of its body transparent to permit the visual examination of the amount of liquid in a pressure vessel, boiler, evaporator, still, processing tank, reservoir, pipe tubing line, and the like, and/or to determine the flow to a lubricated part. It may also be provided with an element that changes colors to indicate changes in moisture content. The item may have a means for refilling. Excludes indicator, liquid quantity and indicator, rate of flow.