Flowmeters, Argon, CO2, 1/4 in NPT(M), 50 psi inlet

Features: Designed for accurate regulation of gas flow | Back pressure compensated design insures accurate readings when line restrictions are present | Polycarbonate flow tube and outer cover are impact resistant for maximum durability and service life | Easy adjustment Brass Bar Stock knob for "fine-tune" flow settings | Underwriters Laboratories Inc. listed