Aluminum Louver vent 31″ x 6 5/8″O.D. Two Blade Louver 30 1/4″ x 5 5/8″ cutout required,  depth at 1.75″ from back of flange, 1/2″ over lap on flange. Designed to be placed on ends of dog boxes or any other dog carrier. Anodized aluminum material, heavy gauge. Back side is complete open, screen would need to be added to keep dog from placing foot through opening.
Optional back screen offered in “Side Louver” category.

Single  Blade Louver back screen. Aluminum perforated , 3/4″ hole diameter x 1″ stagger x 1/8″ thick.

Cut size = 30 1/8″ x 5 5/8″ . Designed to be riveted to back side of louver.

Aluminum Louver vent 31″ x 10.25″O.D. Two Blade Louver 30.25 “x 9.625″ cutout depth at 1.75″, 1/2” over lap on flange. Designed to be placed on ends of dog boxes or any other dog carrier. Anodized aluminum material, heavy gauge. Back side is complete open, screen would need to be added to keep dog from placing foot through opening.
Optional back screen offered in Side Louver category.

Two Blade Louver back screen. Aluminum perforated , 3/4″ hole diameter x 1″ stagger x 1/8″ thick.

Measures 30 1/8″ x 9 3/8″ . Designed to be riveted to back side of louver.