Airgas Model 211B590 Chrome-Plated Brass High Purity Two Stage Regulator With CGA-590 Connection Safety Signage These single-stage positive-seal regulators feature

These single-stage positive-seal regulators feature convoluted

Cortina 03-600-04 - 36" Yellow Lamba Cone - Caution Safety First (5 Packs)

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or a 973 pin-indexed yoke connection for use with E medical cylinders

Material: HDPE

Airgas Model 211B590 Chrome-Plated Brass High Purity Two Stage Regulator With CGA-590 Connection Safety Signage These single-stage positive-seal regulators featureChrome 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.