Home Products Cylinder Regulators Oxygen 95-540-14 Description 2-15 LPM, Diaphragm Style "H" Cylinder Regulator, 540 CGA Nut, Oxygen. This item is non-returnable. Our Price: $177.50 - + Prices Subject to Change without Notice Special pricing and quantity discounts available. Call 888-495-1300 for savings! Add to cart Email a friend Tweet