Special Features:

W/two 1/2-20 nf thd size fluid-in-fluid-out connectors, aluminum alloy body, pyrex redline sight 125 psi rating at 225 degrees f

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.