Invacare HomeFill® Post Valve D Cylinder 422L, 21″ H x 4-3/8″ dia., Oxygen Duration at 2 LPM Flow: 3.5 hrs. Invacare HomeFill® Post Valve Cylinders will accommodate any CGA870 compatible regulator or conserver. They are only for use with the HomeFill® oxygen compressor. Item # AIOINVHF2POSTD
