Dayton 3G-OTH-75228 — Technical Specifications

Name: Dayton 3G-OTH-75228 21"H 21"W Drnbl Extrd Alu Combo Dmpr: Flanged, 17 1/2 in H, 17 1/2 in W, Aluminum, 45° Blade Angle (MPN 20UA21). Key specifications — Brand: DAYTON; Maximum Air Velocity: 3,000 fpm.
Brand: Dayton

The Dayton 20UA21 is a 21-inch by 21-inch combination damper and louver with drainable extruded aluminum blades and a flanged frame. It features a 45-degree blade angle and a maximum air velocity of 3,000 fpm. This unit is designed for applications requiring both airflow control and weather protection.

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Technical Specifications

Parameter	Value
H	17 1/2 in
Type	17 1/2 in W, Aluminum
Brand	DAYTON
Blade Angle	45°
Maximum Air Velocity	3,000 fpm
Manufacturer Part Number	20UA21