Despite the size of this little guy it packs the same punch as its larger siblings. Its only difference is its volume. This tank holds 5 lbs. of CO2 yet inflates tires and runs air tools just as well as the PT-10. The PT-5 fits well into sand buggies, rock buggies, Samis, TJs, and on the backs of quads. If this is the size that fits in your rig and you wish you had the volume of air as the PT-10 then consider the UPS-5 two tank system. Dimensions: 5.25 inch diameter x 21 inch height and 21 pounds when full.