Dwyer DR4109 High Flow Glass Flowmeter is a reliable and accurate solution for measuring the flow of compatible gases or liquids. With a temperature rating of up to 250°F and an accuracy of ±10% FS at 70°F and 14.7 psia, it provides precise readings. The flowtube is made of borosilicate glass, the float is 316 SS, and the end fittings are either brass or 316 SS. Pressure limit is 200 psig, and the turn-down ratio is 10:1. It features a 6-turn needle valve for easy control.