Double-wall 18-gauge welded steel construction with 1 1/2" air space and dual 2" capped vents with flame arrestors. Full-height piano hinges open a full 180° for easy access. All shelves are adjustable on 2 1/2" centers and unit has adjustable leveling feet. Features a recessed handle and 2" high leak proof door sill. 2 manual doors. 1 shelf. 30 gallons. 43"W x 18"D x 44"H. Standard Met: FM/NFPA/OSHA. Meets NFPA Code 30 and OSHA standard 1910 106 for storage for class I, II and III liquids. Tough corrosive resistant finish. 10 year limited warranty.