OMS ® now offers 200 and 300 bar versions of its Rotating cross bar manifold (3 O-Rings per side for redundancy) and its standard Captured O-Ring (DIN O-Ring design) manifolds. The new Stainless Steel Valve/Gas Defender™ plug (Figure #1 below) protects against precious gas loss if your hand wheel accidentally turns to the "On" position and prevents damage to the valve in the event your cylinders are dropped.