Airgas Model 311A320 Brass-Plated Bar Stock Noncorrosive Gas Two Stage Regulator With CGA-320 Connection Low Pressure non-lubricated check valve incorporated into

non-lubricated check valve incorporated into nose and prevents air and contaminants from entering the gas stream during cylinder change out

allows the exterior surfaces to maintaina good appearance in outdoor environments

Cortina 03-501-06 Pack N Pop 18" Orange 3# 6" Collar w/plastic base and LED - no feet (4 Packs)

Since this regulator is dome loaded by a remote sensing pilot regulator

making this one of themost accurate regulators available from full cylinder toempty

Airgas Model 311A320 Brass-Plated Bar Stock Noncorrosive Gas Two Stage Regulator With CGA-320 Connection Low Pressure non-lubricated check valve incorporated intoThese economical plated brass cylinder regulators are specially suited for use in applications and environments requiring both high reliability and diffusion resistance. Sensitive, extra long life stainless steel diaphragms ensure high purity and leak integrity of specialty gases. The cartridge valve design with integral filter protects the regulator seat from particulate contamination and makes servicing simple and cost effective. Two stage design