All models are UL classified for a 1 hr F-Rating. Deep drawn manufacturing process and made in the USA. Extension rim protrudes from nailing flange 7/8 in. Total of eight 1/4 in mounting holes (four on each side). Sides are tapered to allow for nesting of multiple boxes. Surface is clean of any oil residue and will adhere paint. Instruction sheet attached to rear panel. All models incorporate a gas port knock-out.

M&M Dryer Box, 21 in Length, 12-1/2 in Width, 4-3/8 in Depth, Aluminized Steel

• 22 ga aluminized steel weighing 4.03 lb each
• Top port measures 4-7/8 x 3-1/8 in oval shape
• Distance from nailing flange to rear of box is 3-1/2 in
• Inside measures 18-1/4 in H x 9-1/2 in W