Manufacturer : Dive RiteCode : #VA3000-300All Dive Rite manifolds use two barrel o-rings to seal either end of the cross-bar, which provides better shock absorption and redundancy compared to the old-style metal-to-metal seal manifolds. Both our 200 bar and 300 bar manifold valves have a 180mm isolation crossbar that fits both 7.25-inch and 8-inch diameter tanks and recessed burst disks are protected from accidental shearing. Shock absorbing ribbed rubber knobs are rugged, yet easy to manipulate. All Dive Rite manifolds come standard for 3500 psi service pressures. Unlike the 200 bar, the 300 Bar Manifold is designed for use solely with DIN valves. All Dive Rite manifolds and valves come with Viton o-rings and oxygen compatible lubricants and are Nitrox ready up to 40-percent.