Regulators are used to ensure you receive the required flow of calibration gas for your application. MSA regulators save customers’ money by delivering calibration test gas at a rate of .25 lpm verus competitors test gas which flows at a rate of .50 lmp. Gas Miser Demand Regulator: no additional maintenance is required for accurate calibration once attached to the calibration cylinder. Gas Miser Manifold: allows test or calibration of up to four instruments at the same time using the same calibration gas. Calibration Tubing: polyurethane tubing for use with calibration equipment. Model IR Check Kits & Model R Check Kits: consist of a regulating valve which includes a cylinder pressure gauge, an adapter hose with sampling line connection, sensor adapters (where applicable), instructions, and a case fitted with room for two calibration check gas cylinders. Model IRP Check Kits. Model IRP Combination Regulators.