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Twin "Z" Blades— Recommended for Applications Where Both Non-Vision and Adjustable Design is Required in a Tandem Unit

Material: 18 gauge CRS frame and louver blades. Min size 10" x 6", Max 24" x 36". Multiple sections can be combined for larger sizes.

Louver: Two Z-blade sections- the adjustable side is riveted to operating bar and frame at 1" intervals, the fixed side is attached by interlocking construction to the frame.

Frame: Mitered and welded corners. Louver frame is screwed into door from 2 sides.

Operation: Manually-adjustable on interior face unless otherwise specified.

Door: 1-3/4" minimum thickness door.  Door cutout = order size.

Fasteners: Countersunk mounting holes with #8 x 3/4" Phillips flathead screws.