These manifolds are an efficient way to provide oxygen to multiple locations. Manifolds are assembled with brass oxygen fittings. A manifold will divide a single oxygen line into multiple lines to deliver oxygen to a number of desired locations, such as diffusers, compartments or tanks. The flow in each oxygen line can be controlled by a ball seat valve (as shown), by individual flow meters or a combination of both. The desired flow in each line can be more easily adjusted and maintained due to the manifold having a larger internal bore than the oxygen lines. Without this reservoir, valve adjustment to balance the flow is more difficult. Flow meters not Included.