Twenty (20) Cylinder filling cart for filling smaller cylinders. All Stainless Steel frame. Manifold has an isolation valve in the center which allows one side of the manifold to be shut off when filling only 10 cylinders. CGA 540 fittings installed in both ends of the manifold allows additional carts to be connected together with the use of a pigtail. The fittings can also be used to connect our optional Pressure/Vacuum gauge fixture to the end of the manifold.