Available in two and four wheel models and is designed to handle heavy CRYOGENIC LIQUID GAS CYLINDERS. This larger sized frame and repositioned front wheels which allow secure handling without excessive force. The 650A50-51 is designed to handle larger 20" -26" diameter liquid gas cylinders. This model equipped with the QUAD Hook will handle a wide variety of large gas cylinders. Newly designed single hook adjusts from 50" to 60" in height which makes it more versatile for handling a variety of cylinder types. All available with pneumatic or mold on rubber tires