Airgas Model 211D540 Chrome-Plated Brass High Purity Two Stage Regulator With CGA-540 Connection Regulator this regulator is perfect for

this regulator is perfect for non-corrosive

Brass regulators are suitable for noncorrosive service

Material: Acrylic/ABS/Polypropylene

A preset safety relief valve makes these regulators suitable for use only with non-corrosive gases

The metal-to-metal diaphragm seal prevents contamination by eliminating the need for a soft seal and provides a leak-rate design of less than 2 x 10–8 ccs helium

Airgas Model 211D540 Chrome-Plated Brass High Purity Two Stage Regulator With CGA-540 Connection Regulator this regulator is perfect forChrome plated regulators are designed for high purity laboratory applications involving noncorrosive gases. Two stage design is recommended for use where constant delivery pressure is desired.