FIREKING Fire-Resisting Vertical Files protect valuable records, provide peace of mind. Steel shell is reinforced by welded wire to protect against falling debris. 1-piece, cast monolithic, asbestos-free insulation. 19-1/2" filing depth. Heavy-duty full progressive suspension. Drawer catch on lower drawers may be positioned to allow access while the rest of the file is locked. UL class 350 (class “C[quote (right)]) label. When tested, files were exposed to 1700°F for 1 hr., reheated to 1550°F for 1/2 hr. and then dropped 30 ft. with contents still intact. (Lifetime guarantee: free replacement if damaged by fire.) Free freight to dock (tailgate delivery) in the continental U.S. For inside delivery, call for price and specify at time of order. Made in USA.