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1500A - INVERTED SPLIT "Y" BLADE LOUVER WITH SECURITY GRILLE

Features 12 Gauge Security Grille and Two-Piece Thru-bolt Louver Design. Recommended for  Vandal-Proof Building Design.

Material: 18 gauge CRS frame and blades; 12 gauge CRS security grille. Min size 6" x 6", Max 36" x 80". Multiple sections can be combined for larger sizes.

Louvers:  2 rows of inverted, split "Y" blades with 1" blade spacing are attached to welded frame with interlocking construction. Non-vision.

Security Frame: Security grille is welded to the interior and exterior of louver with 13/16" square openings 1" on-center. Thru-bolted door.

Door:  For 1-3/4"Doors. Door cutout = order size.

Fasteners: #8 x 32 Phillips head thru-bolts with blank head one side.

Free Flow Area: 40% free area.