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Dayton 33 in H x 33 in W x 2 1/2 in D Single Panel Flat Blade - Wall-Mount Backdraft Dampers
DaytonWall-Mount Backdraft Dampers

Dayton 33 in H x 33 in W x 2 1/2 in D Single Panel Flat Blade

The Dayton 33"H-W 5 3/4"L Alu Wall Backdraft Damper (SKU 3G-OTH-76476) is a wall-mount backdraft damper with a single-panel, flat-blade design. It measures 33 inches in height, 33 inches in width, and 2 1/2 inches in…

SKU 3G-OTH-76476

Brand
Dayton
Item
33 in H x 33 in W x 2 1/2 in D Single Panel Flat Blade
Category
Wall-Mount Backdraft Dampers
Available to Order
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Dayton
Type
Single Panel, 33 in W
D
2 1/2 in
H
33 in
Blade Type
Flat Blade
Airflow Direction
Horizontal
Mounting Position
Vertical
Maximum Air Velocity
2500 fpm

Technical Documents

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Dayton Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Dayton 33"H-W 5 3/4"L Alu Wall Backdraft Damper (SKU 3G-OTH-76476) is a wall-mount backdraft damper with a single-panel, flat-blade design. It measures 33 inches in height, 33 inches in width, and 2 1/2 inches in depth, and is intended for use with a 30-inch fan. The damper is mounted vertically, directs airflow horizontally, and has a maximum air velocity of 2500 fpm.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Dayton 33"H-W 5 3/4"L Alu Wall Backdraft Damper used for?

This Dayton backdraft damper prevents reverse airflow in exhaust systems. It is designed for wall-mount vertical installation with a 30-inch fan, allowing horizontal airflow while blocking backdrafts. Common applications include commercial ventilation, industrial exhaust, and HVAC systems requiring one-way airflow control.

What are the specifications of the Dayton backdraft damper?

The Dayton is a single-panel, flat-blade aluminum damper measuring 33 inches high, 33 inches wide, and 2 1/2 inches deep. It mounts vertically, directs airflow horizontally, and supports a maximum air velocity of 2500 fpm. The manufacturer part number is .

Where to buy the Dayton backdraft damper worldwide?

3G Electric supplies the Dayton backdraft damper to customers worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install a Dayton wall-mount backdraft damper?

Install the Dayton damper vertically in a wall opening sized for a 30-inch fan. Ensure the airflow arrow points in the desired horizontal direction. Secure the frame with appropriate fasteners and seal edges to prevent air leaks. Test blade movement to confirm free operation before system startup.

Used in

Common applications for Dayton
HVAC ventilation — DAYTON centrifugal upblast roof exhaust fans (SKU 7M7U3) for kitchen exhaust systems
Mechanical power transmission — DAYTON HTD timing pulleys (SKU 404GV0) for conveyor belt drives
Process water handling — DAYTON self-priming centrifugal pumps (SKU 2ZXT4) for dewatering or transfer
Roofing and building services — DAYTON fixed ventilated roof curbs (SKU 4HX59) for filtered supply fan installations
Material handling — DAYTON latch assemblies (SKU 2KEN4) for electric chain hoist hook safety
Industrial air movement — DAYTON downblast roof exhaust fans (SKU 3HFL9) for clean air exhaust in manufacturing plants

Dayton Products

3G Electric supplies Dayton wall-mount backdraft dampers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Cross-referenced by specification & description
23"H-W 5.75"L Alu Wall Backdraft Dampr: For 20 in Fan, Single Panel, 23 in H, 23 in W, 2 1/2 in D
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This single panel backdraft damper is designed for wall-mount installation in vertical orientation, allowing horizontal airflow. It features flat blades and supports a maximum air velocity of 2500 fpm. Suitable for exhaust ventilation systems to prevent reverse airflow
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This single panel backdraft damper is designed for wall-mount installation in vertical orientation, allowing horizontal airflow. It features flat blades and supports a maximum air velocity of 2500 fpm. Suitable for exhaust ventilation systems to prevent reverse airflow
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33"H-W 5.75"L Alu Wall Backdraft Dampr: For 30 in Fan, Single Panel, 33 in H, 33 in W, 3 in D, Wall
This wall-mount backdraft damper features a single panel with flat blades, designed for horizontal airflow in vertical mounting positions. It measures 19 inches high by 19 inches wide by 2 1/2 inches deep and supports a maximum air velocity of 2500 fpm. Suitable for ventilation systems requiring one-way airflow control
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This wall-mount backdraft damper features a single panel with flat blades, designed for horizontal airflow in vertical mounting positions. It measures 19 inches high by 19 inches wide by 2 1/2 inches deep and supports a maximum air velocity of 2500 fpm. Suitable for ventilation systems requiring one-way airflow control
Single panel wall-mount backdraft damper with flat blades. Designed for horizontal airflow in vertical mounting position. Dimensions: 39 in height, 39 in width, 2 1/2 in depth. Maximum air velocity: 2500 fpm. Used to prevent reverse airflow in ventilation systems
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Single panel wall-mount backdraft damper with flat blades. Designed for horizontal airflow in vertical mounting position. Dimensions: 39 in height, 39 in width, 2 1/2 in depth. Maximum air velocity: 2500 fpm. Used to prevent reverse airflow in ventilation systems

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Wall-mount backdraft damper with single-panel flat blade design. Measures 15 inches high by 15 inches wide by 2.5 inches deep. Supports horizontal airflow direction and vertical mounting. Maximum air velocity of 2500 fpm. Used to prevent reverse airflow in ventilation systems
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This wall-mount backdraft damper is designed for horizontal airflow in vertical mounting positions. It features a single-panel, flat blade construction and is suitable for use in ventilation systems where one-way airflow is required. Maximum air velocity is 2500 fpm
Aluminum wall-mount backdraft damper with single panel flat blade design. Mounts vertically for horizontal airflow, maximum air velocity 2250 fpm. Prevents reverse airflow in exhaust systems when fan is off
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Aluminum wall-mount backdraft damper with single panel flat blade design. Mounts vertically for horizontal airflow, maximum air velocity 2250 fpm. Prevents reverse airflow in exhaust systems when fan is off
This wall-mount backdraft damper features a single-panel flat blade design for horizontal airflow and vertical mounting. It measures 13 inches high by 13 inches wide by 2.5 inches deep, with a maximum air velocity of 2500 fpm. Suitable for exhaust and intake ventilation systems to prevent reverse airflow when the fan is off
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This wall-mount backdraft damper features a single-panel flat blade design for horizontal airflow and vertical mounting. It measures 13 inches high by 13 inches wide by 2.5 inches deep, with a maximum air velocity of 2500 fpm. Suitable for exhaust and intake ventilation systems to prevent reverse airflow when the fan is off
Wall-mount backdraft damper with flat blades for horizontal airflow in vertical mounting position. Single-panel design, 23 in high, 23 in wide, 2 in deep. Maximum air velocity 2500 fpm. Used to prevent reverse airflow in ventilation systems, typically paired with a 20-inch fan
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This wall-mount backdraft damper is designed for use in ventilation systems to prevent reverse airflow. It features a double-panel, flat blade construction with horizontal airflow direction and vertical mounting. Suitable for applications where a 57-inch wide opening requires backdraft prevention, supporting a maximum air velocity of 3000 fpm