• 1900-A 24 x 24 Air Louvers - Bronze

*Actual product and finish may vary

The Air Louvers 1900-A is a 24” x 24” Bronze Louver with adjustable Z-Blade and Fusible Link. 

Listed by U.L. and WHI and is ideal for use in fire doors up to 1-1/2 hour rating.  The Listing Mark is provided in the frame of the louver.  Spring loaded fusible link mechanism.

Stock units are for use on 1-3/4” doors.

Adjustable Z-Blade Louver with Fusible Link is Ideal for Use in Fire Doors up to 1-1/2 Hour Rating. The Self-Attaching Frame Style is Ideal for Installation in Existing Door Cutouts.

Air Louvers catalog


Material: 16 gauge CRS frame and louver blades. Min size 10" x 6", Max 24" x 24".

Construction: Louver: Z-blade louver is riveted to the operating bar and frame at 1" intervals to welded 1-9/16" deep frame. Mechanical Stop holds blades open.  Frame: Mitered and welded corners: screws fastened through prepared frame into louver core leaving corridor side of frame free of fasteners.

Operation: Adjustable blades of 16 gauge CRS pivot on cadmium-plated steel rivets. The blades are operated by a manual adjusting lever. A spring loaded fusible link mechanism is incorporated into the design; upon melting of the link, the action bar is actuated, thereby closing and locking all of the blades.

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

Fasteners: #8 x 3/4" Phillips flathead screws to match finish.

Model 1900A is rated for use in fire doors up to 1-1/2 hour rating.

WHI Fire door testing: CAN/ULC S104, NFPA252, UBC 7-2, UL10B, UL10C, BS476, ISO 3008. Louver size shall not exceed maximum width and height shall not be less than 10" and 6", respectively. Louvers may be provided for classified hollow metal type and composite type fire doors. Consult with the Local Authority Having Jursidiction (AHJ) to determine appropriate standards. Louver frame will be labeled with Listing mark.




1900-A 24 x 24 Air Louvers - Bronze

  • $199.00