FEATURES:Chrome-plated brass body with all brass high-pressure chamber Maximum rated inlet pressure 3000 psi Durable neoprene diaphragm Internal reseating relief valve protects against over-pressurization Sintered filter for additional safety and to extend regulator life 2 diameter gauge UL listed 15 LPM Oxygen models provide 85-90 LPM flood maximum 7 LPM models restricted to 10 LPM maximum Polycarbonate inner and outer tubes provide greater accuracy and durability Includes plastic swivel hose barb (not shown) THIS ITEM QUALIFIES FOR FREE FREIGHT. Uncategorized, Western , Western Diaphram Regulator with Flowmeter Attachment (0-15 LPM) CGA 540 – M1-540-15FM.