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NATIONAL GUARD L-1900DKB-24x12 Fusible Louver Kit - Door Louver Kits

NATIONAL GUARDDoor Louver Kits

NATIONAL GUARD L-1900DKB-24x12 Fusible Louver Kit

The NATIONAL GUARD L-1900DKB-24x12 Fusible Louver is a steel door louver kit with a powder-coated brown finish, designed for a 12 in opening height and 24 in opening width, with a 10 in louver height and 22 in louver…

SKU 3G-OTH-739464

Also listed as: L1900DKB24x12 · L 1900DKB 24x12

Brand

NATIONAL GUARD

Item

L-1900DKB-24x12 Fusible Louver Kit

Category

Door Louver Kits

Available to Order

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Technical specs

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Local availability & support

Delivery: Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment: Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

NATIONAL GUARD

Manufacturer Part Number

L-1900DKB-24x12 

Material

Steel 

Color

Brown 

Finish

Powder Coated 

Louver Ht

10 in 

Louver Wd

22 in 

Opening Ht

12 in 

Opening Wd

24 in 

Technical Documents

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NATIONAL GUARD Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

The NATIONAL GUARD L-1900DKB-24x12 Fusible Louver is a steel door louver kit with a powder-coated brown finish, designed for a 12 in opening height and 24 in opening width, with a 10 in louver height and 22 in louver width.

Frequently Asked Questions

What is a NATIONAL GUARD L-1900DKB-24x12 fusible louver used for?

This steel door louver kit provides ventilation while maintaining fire safety. The fusible link melts at a set temperature, closing the louver to block flames and smoke. It is commonly installed in commercial or industrial doors requiring passive fire protection.

What are the specifications of the NATIONAL GUARD L-1900DKB-24x12 fusible louver?

The louver is made of steel with a powder-coated brown finish. It fits a 12 in opening height and 24 in opening width, with a louver height of 10 in and louver width of 22 in. The manufacturer part number is L-1900DKB-24x12.

Where to buy a NATIONAL GUARD L-1900DKB-24x12 fusible louver worldwide?

3G Electric supplies the NATIONAL GUARD L-1900DKB-24x12 fusible louver to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this steel door louver kit.

How to install a NATIONAL GUARD fusible louver in a steel door?

Cut a rough opening matching the louver dimensions (12 in high by 24 in wide). Secure the louver frame with screws through the door, ensuring the fusible link is oriented correctly per the manufacturer's instructions. Test the mechanism to confirm free movement before finalizing.

NATIONAL GUARD Products

3G Electric supplies NATIONAL GUARD door louver kits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description

Steel door louver kit with powder-coated gray finish. Designed for 18 in opening height and 18 in opening width, with 16 in louver height and 16 in louver width. Fusible link mechanism automatically closes the louver when exposed to high heat, providing ventilation while maintaining fire safety in commercial or industrial door applications

Steel door louver kit with powder-coated gray finish. Designed for 18 in opening height and 18 in opening width, with 16 in louver height and 16 in louver width. Fusible link mechanism automatically closes the louver when exposed to high heat, providing ventilation while maintaining fire safety in commercial or industrial door applications

Steel door louver kit in brown finish. Louver height 7 1/4 in, designed for 8 in opening height and 14 in opening width. Used to provide ventilation and airflow through doors in commercial or industrial partitions

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This brown steel door louver kit has a 12 in opening height and width, with a louver height and width of 10 1/4 in. It provides passive ventilation for interior or exterior doors, allowing airflow while maintaining privacy and security. Commonly used in commercial and industrial facilities for HVAC balance, equipment rooms, or restroom doors

This brown steel door louver kit has a 12 in opening height and width, with a louver height and width of 10 1/4 in. It provides passive ventilation for interior or exterior doors, allowing airflow while maintaining privacy and security. Commonly used in commercial and industrial facilities for HVAC balance, equipment rooms, or restroom doors

This door louver kit is constructed from steel with a powder-coated gray finish. It fits a 24-inch by 24-inch opening, with a louver height and width of 23 1/4 inches each. Designed for passive ventilation in industrial doors, it allows airflow while blocking debris

This door louver kit is constructed from steel with a powder-coated gray finish. It fits a 24-inch by 24-inch opening, with a louver height and width of 23 1/4 inches each. Designed for passive ventilation in industrial doors, it allows airflow while blocking debris

Steel door louver kit in brown finish. Opening height 16 in, opening width 6 in, louver height 5 1/4 in. Provides passive ventilation through steel doors in partitions, restrooms, changing rooms, or utility areas

Steel door louver kit in brown finish. Opening height 16 in, opening width 6 in, louver height 5 1/4 in. Provides passive ventilation through steel doors in partitions, restrooms, changing rooms, or utility areas

Stainless steel door louver kit with an unfinished gray finish. Opening height 12 in, opening width 18 in; louver height 10 in, louver width 16 in. Provides passive ventilation for doors in mechanical rooms, warehouses, and plant entryways

Stainless steel door louver kit with an unfinished gray finish. Opening height 12 in, opening width 18 in; louver height 10 in, louver width 16 in. Provides passive ventilation for doors in mechanical rooms, warehouses, and plant entryways

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Steel door louver kit with a brown powder-coated finish. The louver measures 22 by 22 inches, fitting a 24 by 24 inch opening. Designed for ventilation in doors, the fusible link mechanism automatically closes the louver when exposed to high heat to help contain fire and smoke

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Steel door louver kit with a powder-coated gray finish. Opening height 8 in, opening width 14 in, louver height 6 1/4 in. Provides passive ventilation for enclosed spaces such as equipment rooms or mechanical closets

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Steel door louver kit with powder-coated gray finish. Fits a 12 in by 12 in opening; louver measures 10 1/4 in by 10 1/4 in. Provides passive ventilation for industrial doors, allowing airflow while blocking debris. Suitable for machine rooms, warehouses, and plant enclosures

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Steel door louver kit with a 16 in opening height and 16 in opening width, featuring a 15 1/4 in louver height. Powder coated gray finish. Used to provide ventilation and airflow through doors in commercial or industrial partitions, such as restrooms, utility rooms, or mechanical spaces

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This door louver kit is constructed of steel with a powder-coated gray finish. It has an 8-inch opening height and width, with a 7 1/4-inch louver height. Designed for installation in interior doors to allow passive ventilation in commercial or industrial settings

This door louver kit is constructed of steel with a powder-coated gray finish. It has an 8-inch opening height and width, with a 7 1/4-inch louver height. Designed for installation in interior doors to allow passive ventilation in commercial or industrial settings

Steel door louver kit with powder-coated brown finish. Opening height and width are 12 in; louver height and width are 10 in. Used for passive ventilation in doors, allowing airflow while the fusible link closes the louver at high temperatures to help contain smoke and flames

Steel door louver kit with powder-coated brown finish. Opening height and width are 12 in; louver height and width are 10 in. Used for passive ventilation in doors, allowing airflow while the fusible link closes the louver at high temperatures to help contain smoke and flames

This steel door louver kit with a brown powder-coated finish is designed for installation in doors to provide ventilation. The louver measures 16 by 16 inches and fits an 18 by 18 inch opening. Commonly used in commercial and industrial settings where airflow through doors is required

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Steel door louver kit with brown finish. Opening height 8 in, opening width 14 in, louver height 6 1/4 in. Provides ventilation and airflow through doors in mechanical rooms, warehouses, or plant partitions

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