18 In Backdraft Damper / Wall Shutter, 18-1/2 In X 18-1/2 In

Safety Sign, Horizontal Rectangle, Number of Printed Sides 1, English, Sign Format Traditional OSHA, Sign Legend Keep Out, Sign Legend Background Color White, Sign Legend Style Text.

Invisible Hinge Guide, Compatible Manufacturer Model Number 43828, Guide Style Invisible Hinge, Number of Pieces 1, Compatible Grainger Model Number 3ZK22, Material Wood, Pilot Length 1/4 in, Product Type Invisible Hinge Guide.

LED Bollard, Height 14 in, Lumens 800 lm, Fixture Wattage 9.2 lm/W, Standards cETL Listed, ETL.

050 Cham.252" Bore, 0.

236",240 Zirc Alum.Flex-Hone,6mm,0.

Flex-Hone,7/8",22mm,120 Grit Boron.

1 in, Overall Length 6 1/2 in, Connection Type Not Applicable, Frame Depth 3 in.H-W 6.L Fiberglass Backdraft Damper, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Fiberglass, Number of Panels 1, Maximum Air Velocity 2500 fpm, Overall Height 21 in, Rough Opening Diameter 18 1/2 in, Rough Opening Shape Square, Fits Fan Diameter 18 in, For Duct Shape Not Applicable, Free Area 1.

Kit, Linkage Model Number AMD12, AMD16, AMD20, AMD24, GMD12, GMD16, GMD20, GMD24, TFC120-DAY, Fits Brand Dayton.

8 sq ft, Overall Width 21 in, Frame Material Thickness 0.21 In.

Kit, Linkage Model Number AMD12, AMD16, AMD20, AMD24, GMD12, GMD16, GMD20, GMD24, TFC120-DAY, Fits Brand Dayton.