VWR SG-900 Semiautomatic Switchover Manifolds for Noncorrosive and Corrosive Gases Chrome-Plated Brass Manifolds. Combining top-notch and uncompromising quality with an affordable price the VWR SG-900 Semiautomatic Switchover Manifolds for Noncorrosive and Corrosive Gases Chrome-Plated Brass Manifolds 4702672/ 82023-744 can fulfill your laboratory needs while still offering a great value for the money. Product Category Description: Ideal for CO2 Incubators The SG-900 system is designed to prevent the depletion of gas during testing and to eliminate the downtime required to change empty cylinders. The manifold will automatically switch gas supply from the primary cylinder to a reserve cylinder when the primary supply is depleted. This occurs when the pressure on the primary gauge drops to approximately 160psi. The switch is completed by turning a lever to designate the reserve cylinder as the now operational primary cylinder. The process may be repeated as often as necessary to maintain smooth and uninterupted testing procedures and cylinder refills can be accomplished without work stoppage. The manifold is available in chrome plated brass or stainless steel for corrosive gas applications. All pigtails have a reverse flow check valve to prevent back flow of gas while changing cylinders. The outlet fitting on the delivery regulator is 0.64cm (1/4") NPT female pipe. Ordering Information: Manifolds include a delivery pressure regulator wall bracket and two 61cm (24") pigtails with reverse flow check valves (fasteners not included). Specifications for VWR SG-900 Semiautomatic Switchover Manifolds for Noncorrosive and Corrosive Gases 4702672 Chrome-Plated Brass Manifolds : Gas Delivery: Oxygen Inlet CGA: 540 DeliveryPressure psi: 0 125 (Please note that the description and stock photo may not correspond to the specific model listed above) We offer only genuine Harris Calorific products authorized for sale in the U.S. and other markets so you can be sure that you are buying authentic Labware & Accessories with a full manufacturer's warranty in addition to our own 100percent Satisfaction Guarantee. We are your premier online distributor for VWR Labware & Accessories. We are an authorized supplier to all federal and state government agencies as well as to research and educational institutions and can facilitate volume orders on many types of laboratory equipment lab consumables and other products to help fulfill your specific needs. We offer Free Shipping and FREE USPS shipping to APO and FPO addresses on all orders in our store over 49. Please refer to our APO/FPO Shipping and Export Restrictions for more information on export to APO/FPO addresses. In addition to the VWR SG-900 Semiautomatic Switchover Manifolds for Noncorrosive and Corrosive Gases Chrome-Plated Brass Manifolds 4702672/ 82023-744 we carry a full complement of Labware & Accessories as well as other product offerings from Harris Calorific. We also carry a full line of VWR accessories to help meet your laboratory and scientific needs. For a complete selection of VWR Labware & Accessories please visit our Harris Calorific page. For more brand name Labware & Accessories please visit our Labware & Accessories store section. To see our complete line of lab medical industrial and scientific products please see our science and lab equipment online catalog. VWR SG-900 Semiautomatic Switchover Manifolds for Noncorrosive and Corrosive Gases 4702672 Chrome-Plated Brass Manifolds