Dayton 3G-OTH-74572 — Technical Specifications

Name: Dayton 3G-OTH-74572 27.8"H-W 4.5"L Alu Spring Bkdrft Dampr: For 28 in Fan, For 28 in Nominal Duct Dia, Single Panel (MPN 3HHL7). Key specifications — Airflow Direction: Vertical; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2000 fpm; Mounting Position: Vertical.
Brand: Dayton

The Dayton 27.8"H-W 4.5"L Alu Spring Bkdrft Dampr is a universal-mount backdraft damper designed for a 28 in fan and 28 in nominal duct diameter. It features a single-panel, flat blade construction with vertical airflow direction and vertical mounting position. The damper has a maximum air velocity of 2000 fpm.

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Technical Specifications

Parameter	Value
Type	For 28 in Nominal Duct Dia, Single Panel
Brand	DAYTON
Blade Type	Flat Blade
Airflow Direction	Vertical
Mounting Position	Vertical
Maximum Air Velocity	2000 fpm
Manufacturer Part Number	3HHL7