YSN YSN401 Worthington Cylinders 303375 Lp Tank 40# Vert.Acme W/OPD Cylinders are manufactured to Department of Transportation (DOT) or Transport Canada (TC) specifications Engineered design for lightweight strength Rugged, damage resistant all steel construction Comfortable hand-holds in the collar for easier lifting Rust inhibiting powder coat paint OPD Propane Gas Tank - DOT certified propane cylinders contain a stop fill valve and OPD Powder coated 40 pound DOT Tank, (10 Gallon) 12 inch Diameter 36 pound empty