The 780-10 is designed to hold two large hi-pressure cylinders and is built for abuse; This cart is excellent for use on docks and delivery trucks. The 780-10 can also be used as a two-wheeler for delivery of hard goods (electrodes, etc.). The LCT-12-6 is a new design with spring load hanger; This cart is the same width as the cylinder for easy maneuverability through doorways and truck isles; It has 12" pneumatic front wheels and 6" rubber coated steel casters in the rear. The 730-12 and the 730-12F are multi-purpose carts designed specifically for the welding distributor; These carts will accommodate (1) liquid cylinder and (2) hi-pressure cylinders . The 730-12 has a fixed rear caster where the 730-12F has a folding rear caster for easy storage on a route truck. The EZ-LOAD 4L is a vertical version of liquid cylinder logistics with hard core phenolic wheels: This cart is ideal for use in laboratories, hospitals and fill stations