Dayton 3G-OTH-74368 — Technical Specifications

Name: Dayton 3G-OTH-74368 7.75"H-W 4.5"L Aluminum Backdraft Damper: For 8 in Fan, For 8 in Nominal Duct Dia, Single Panel (MPN 3HHL4). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2000 fpm; Mounting Position: Horizontal.
Brand: Dayton

The Dayton 7.75"H-W 4.5"L Aluminum Backdraft Damper (SKU 3HHL4) is a universal-mount backdraft damper designed for use with an 8-inch fan and 8-inch nominal duct diameter. It features a flat blade type, supports horizontal airflow direction, and is intended for horizontal mounting positions. The damper has a maximum air velocity of 2000 fpm.

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Technical Specifications

Parameter	Value
Type	For 8 in Nominal Duct Dia, Single Panel
Brand	DAYTON
Blade Type	Flat Blade
Airflow Direction	Horizontal
Mounting Position	Horizontal
Maximum Air Velocity	2000 fpm
Manufacturer Part Number	3HHL4