Dayton 3G-OTH-74704 — Technical Specifications

Name: Dayton 3G-OTH-74704 14"H-W 4.5"L Aluminum Backdraft Damper: For 12 in Fan, Single Panel, 14 in H, 14 in W, 2 in D, Felt (MPN 4HX64). Key specifications — Airflow Direction: Vertical; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2000 fpm; Mounting Position: Horizontal.
Brand: Dayton

The Dayton 14"H-W 4.5"L Aluminum Backdraft Damper (SKU 4HX64) is a ceiling/roof-mount backdraft damper designed for use with a 12-inch fan. It features a single-panel flat blade design with vertical airflow direction and a horizontal mounting position, supporting a maximum air velocity of 2000 fpm. The damper measures 14 inches in height, 14 inches in width, and 2 inches in depth, with felt construction.

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Technical Specifications

Parameter	Value
D	2 in
H	14 in
Type	Single Panel, 14 in W, Felt
Brand	DAYTON
Blade Type	Flat Blade
Airflow Direction	Vertical
Mounting Position	Horizontal
Maximum Air Velocity	2000 fpm
Manufacturer Part Number	4HX64