Description General description Durable supports hold gas, oxygen, welding, cascade, propane, or LP cylinders, with diameters 3 to 12 3/8 in. Heavy 11 gauge welded construction, baked enamel finish, steel-reinforced resin edge-guards. 1 1/2 in. Support straps are 1.5 in. wide by 54 in. long polypropylene with steel cinch buckle and rate a robust 1138 PSI and are the primary means of support as they enable the cylinders to be held tight and secure against the brackets, chain sets assure long service life. The bench mount brackets are secured via thumbscrews. All units comply with OSHA, NFPA, UFC, and AGA standards.