Dayton 3G-OTH-74658 — Technical Specifications

Name: Dayton 3G-OTH-74658 35.75"H-W 4.5"L Aluminum Backdraft Dampr: For 36 in Fan, For 36 in Nominal Duct Dia, Single Panel (MPN 3HHN1). Key specifications — Airflow Direction: Horizontal; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2250 fpm; Mounting Position: Vertical.
Brand: Dayton

The Dayton 3HHN1 is a universal-mount backdraft damper with a 35.75-inch height and width and a 4.5-inch length, designed for use with a 36-inch fan and 36-inch nominal duct diameter. It features flat blades, supports horizontal airflow direction, and is intended for vertical mounting. The damper has a maximum air velocity of 2250 fpm.

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Technical Specifications

Parameter	Value
Type	For 36 in Nominal Duct Dia, Single Panel
Brand	DAYTON
Blade Type	Flat Blade
Airflow Direction	Horizontal
Mounting Position	Vertical
Maximum Air Velocity	2250 fpm
Manufacturer Part Number	3HHN1