Carbon Steel IBC Totes (Intermediate Bulk Containers) range in size from 180 gallons all the way up to 550 gallons. Carbon Steel IBCs have a heavy duty 10-gauge construction and a 1/2" sloped bottom for maximum drainage. It has a 2" bottom outlet with 2" 316 stainless steel ball valve, shipping plug and patented stamped guard. Carbon Steel IBC Totes features a 22-1/2" diameter top fill opening with drum cover with 3" threaded fusible vent installed in center of the cover, both with EPDM gaskets. Tanks also feature lifting lugs, and are UN31A designed, tested and labeled.