Spec Master HPT620 Series two stage piston cylinder regulators are designed for primary pressure gas control of non-corrosive or toxic, high purity gases upto grade 6.0 purity (99.9999%), on applications where constant delivery pressure is required as the cylinder pressure decreases.

■ HPT621 Series | Two Stage Piston Cylinder Regulator, FKM Seal
■ HPT622 Series | Two Stage Piston Cylinder Regulator, EPDM Seal

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