Demand Flow Calibration Gas Regulator, Gasco DFR

Demand flow regulator for instruments equipped with pump. The regulator provides the exact amount of gas the instrument pump requires.
For 34, 44, 58, 66, 74, 105 & 116 liter aluminum cylinders & 103 liter steel cylinders.
Nickel plated brass, 1200 psi pressure gauge.
Notice: GASCO's demand flow regulators are NOT designed for use with highly reactive calibration gas mixtures such as chlorine, hydrogen chloride, ammonia, etc..