We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

Dayton 42"H-W 5.75"L Aluminum Exhaust Shutter: For 36 in Fan, Double Panel, 42 in H - Wall-Mount Backdraft Dampers
DaytonWall-Mount Backdraft Dampers

Dayton 42"H-W 5.75"L Aluminum Exhaust Shutter: For 36 in Fan, Double Panel, 42 in H

The Dayton 45C666 is a wall-mount backdraft damper designed for use with a 36-inch fan. It features a double-panel, flat blade design with a 42-inch height and width, and a 2 1/4-inch depth. This aluminum exhaust…

SKU 3G-OTH-76758

Brand
Dayton
Item
42"H-W 5.75"L Aluminum Exhaust Shutter: For 36 in Fan, Double Panel, 42 in H
Category
Wall-Mount Backdraft Dampers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

Dayton
Manufacturer Part Number
45C666
Type
Double Panel, 42 in W
D
2 1/4 in
H
42 in
Blade Type
Flat Blade
Airflow Direction
Horizontal
Mounting Position
Vertical
Maximum Air Velocity
2500 fpm
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The Dayton 45C666 is a wall-mount backdraft damper designed for use with a 36-inch fan. It features a double-panel, flat blade design with a 42-inch height and width, and a 2 1/4-inch depth. This aluminum exhaust shutter is rated for a maximum air velocity of 2500 fpm, with horizontal airflow direction and vertical mounting position.

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 45C666 exhaust shutter used for?

The Dayton 45C666 is a wall-mount backdraft damper that prevents reverse airflow when a 36-inch fan is off. It is used in industrial ventilation systems to maintain one-way horizontal airflow, protecting equipment and maintaining air quality in facilities worldwide.

What are the specifications of the Dayton 45C666?

The Dayton 45C666 is a double-panel, flat-blade aluminum exhaust shutter measuring 42 in H x 42 in W x 2 1/4 in D. It is rated for a maximum air velocity of 2500 fpm, mounts vertically, and directs airflow horizontally. It is designed for use with a 36-inch fan.

Where to buy the Dayton 45C666 worldwide?

3G Electric supplies the Dayton 45C666 exhaust shutter to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this and other Dayton ventilation products.

How to install the Dayton 45C666 backdraft damper?

Mount the Dayton 45C666 vertically on a wall opening sized for a 36-inch fan. Ensure the shutter frame is securely fastened and the blades swing freely in the horizontal airflow direction. Follow standard industrial damper installation practices, including sealing the perimeter to prevent air leaks.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Similar products

Matched by specification & description
54"H-W 5.75"L Aluminum Exhaust Shutter: For 48 in Fan, Double Panel, 54 in H, 54 in W, 2 1/4 in D (MPN 45C667). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2500 fpm; Mounting Position: Vertical.
Dayton
54"H-W 5.75"L Aluminum Exhaust Shutter: For 48 in Fan, Double Panel, 54 in H, 54 in W, 2 1/4 in D (MPN 45C667). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2500 fpm; Mounting Position: Vertical.
45"H-W 5.75"L Alu Wall Exhaust Shutter: For 42 in Fan, Double Panel, 45 in H, 45 in W, 3 in D, Wall (MPN 2FTW1). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2500 fpm; Mounting Position: Vertical.
Dayton
45"H-W 5.75"L Alu Wall Exhaust Shutter: For 42 in Fan, Double Panel, 45 in H, 45 in W, 3 in D, Wall (MPN 2FTW1). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2500 fpm; Mounting Position: Vertical.
39"H-W 5.75"L Alu Wall Exhaust Shutter: For 36 in Fan, Single Panel, 39 in H, 39 in W, 3 in D, Wall (MPN 2FTW7). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2500 fpm; Mounting Position: Vertical.
Dayton
39"H-W 5.75"L Alu Wall Exhaust Shutter: For 36 in Fan, Single Panel, 39 in H, 39 in W, 3 in D, Wall (MPN 2FTW7). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2500 fpm; Mounting Position: Vertical.
42"H-W 5.75"L Aluminum Wall Shutter: For 36 in Fan, Single Panel, 42 in H, 42 in W, 2 1/2 in D, Wall (MPN 53DR14). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2500 fpm; Mounting Position: Vertical.
Dayton
42"H-W 5.75"L Aluminum Wall Shutter: For 36 in Fan, Single Panel, 42 in H, 42 in W, 2 1/2 in D, Wall (MPN 53DR14). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2500 fpm; Mounting Position: Vertical.
45"H-W 5.75"L Alu Wall Vent Shutter: For 42 in Fan, Double Panel, 45 in H, 45 in W, 2 1/2 in D, Wall (MPN 1C210). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2500 fpm; Mounting Position: Vertical.
Dayton
45"H-W 5.75"L Alu Wall Vent Shutter: For 42 in Fan, Double Panel, 45 in H, 45 in W, 2 1/2 in D, Wall (MPN 1C210). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2500 fpm; Mounting Position: Vertical.
39"H-W 5.75"L Aluminum Fan Wall Shutter: For 36 in Fan, Double Panel, 39 in H, 39 in W, 2 1/2 in D (MPN 4C835). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2500 fpm; Mounting Position: Vertical.
Dayton
39"H-W 5.75"L Aluminum Fan Wall Shutter: For 36 in Fan, Double Panel, 39 in H, 39 in W, 2 1/2 in D (MPN 4C835). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2500 fpm; Mounting Position: Vertical.

More from Dayton

View all Dayton parts
19"H-W 6.5"L Fiberglass Backdraft Damper: For 16 in Fan, Single Panel, 19 in H, 19 in W, 3 in D (MPN 5C212). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2500 fpm; Mounting Position: Vertical.
Dayton
19"H-W 6.5"L Fiberglass Backdraft Damper: For 16 in Fan, Single Panel, 19 in H, 19 in W, 3 in D (MPN 5C212). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2500 fpm; Mounting Position: Vertical.
15"H-W 6.5"L Extrd Alu Backdraft Dampr: For 12 in Fan, Single Panel, 15 in H, 15 in W, 3 in D, Wall (MPN 4FZH3). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 3250 fpm; Mounting Position: Vertical.
Dayton
15"H-W 6.5"L Extrd Alu Backdraft Dampr: For 12 in Fan, Single Panel, 15 in H, 15 in W, 3 in D, Wall (MPN 4FZH3). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 3250 fpm; Mounting Position: Vertical.
45"H-W 5.75"L Aluminum Backdraft Damper: For 42 in Fan, Double Panel, 45 in H, 45 in W, 3 in D, Wall (MPN 3C311). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2500 fpm; Mounting Position: Vertical.
Dayton
45"H-W 5.75"L Aluminum Backdraft Damper: For 42 in Fan, Double Panel, 45 in H, 45 in W, 3 in D, Wall (MPN 3C311). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2500 fpm; Mounting Position: Vertical.
63"H-W 6 1/4"L Aluminum Backdraft Damper: For 60 in Fan, Double Panel, 63 in H, 63 in W, 3 in D (MPN 3HHP2). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2500 fpm; Mounting Position: Vertical.
Dayton
63"H-W 6 1/4"L Aluminum Backdraft Damper: For 60 in Fan, Double Panel, 63 in H, 63 in W, 3 in D (MPN 3HHP2). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2500 fpm; Mounting Position: Vertical.
25"H-W 5.75"L Aluminum Wall Fan Shutter: For 20 in Fan, Single Panel, 25 in H, 25 in W, 3 in D, Wall (MPN 53DR17). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2500 fpm; Mounting Position: Vertical.
Dayton
25"H-W 5.75"L Aluminum Wall Fan Shutter: For 20 in Fan, Single Panel, 25 in H, 25 in W, 3 in D, Wall (MPN 53DR17). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2500 fpm; Mounting Position: Vertical.
27"H-W 5 1/4"L SS Backdraft Dampr: For 24 in Fan, Double Panel, 27 in H, 27 in W, 2 in D, Horizontal (MPN 4FZJ8). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2500 fpm; Mounting Position: Vertical.
Dayton
27"H-W 5 1/4"L SS Backdraft Dampr: For 24 in Fan, Double Panel, 27 in H, 27 in W, 2 in D, Horizontal (MPN 4FZJ8). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2500 fpm; Mounting Position: Vertical.
13"H-W 5.75"L Aluminum Backdraft Damper: For 10 in Fan, Single Panel, 13 in H, 13 in W, 2 1/2 in D (MPN 4C555). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2500 fpm; Mounting Position: Vertical.
Dayton
13"H-W 5.75"L Aluminum Backdraft Damper: For 10 in Fan, Single Panel, 13 in H, 13 in W, 2 1/2 in D (MPN 4C555). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2500 fpm; Mounting Position: Vertical.
19"H-W 6.5"L Extrd Alu Backdraft Dampr: For 16 in Fan, Single Panel, 19 in H, 19 in W, 3 in D, Wall (MPN 4FZH4). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 3250 fpm; Mounting Position: Vertical.
Dayton
19"H-W 6.5"L Extrd Alu Backdraft Dampr: For 16 in Fan, Single Panel, 19 in H, 19 in W, 3 in D, Wall (MPN 4FZH4). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 3250 fpm; Mounting Position: Vertical.