Dayton 21"H 21"W Drnbl Extrd Alu Combo Dmpr: Flanged, 17 1/2 in H, 17 1/2 in W
The Dayton 3G-OTH-75228 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…
SKU 3G-OTH-75228
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The Dayton 3G-OTH-75228 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.
Frequently Asked Questions
What is the Dayton 20UA21 combination damper and louver used for?
The Dayton 20UA21 is used in HVAC and industrial ventilation systems where both airflow control and weather protection are needed. Its drainable extruded aluminum blades and flanged frame make it suitable for outdoor air intakes and exhaust applications that require resistance to rain and debris.
What are the specifications of the Dayton 20UA21?
The Dayton 20UA21 has a 17 1/2 in by 17 1/2 in duct size, a 21 in by 21 in overall flange, extruded aluminum drainable blades with a 45° blade angle, and a maximum air velocity of 3,000 fpm. The brand is Dayton and the manufacturer part number is 20UA21.
Where to buy the Dayton 20UA21 worldwide?
3G Electric supplies the Dayton 20UA21 combination damper and louver to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and a quote for your region.
How to install the Dayton 20UA21 combination damper?
Install the Dayton 20UA21 with the flanged frame securely fastened to the duct or wall opening, ensuring the blades open in the direction of airflow. Follow standard HVAC damper installation practices: verify clearance for blade rotation, seal the flange perimeter, and test operation before commissioning.
Used in
Common applications for DaytonDayton Products
3G Electric supplies Dayton combination dampers & louvers with drainable blades. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
