Roof Curb Adapter, Curb Side Sq O D 21 In MPN:3AZK8
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In Stock
Free Shipping
In Stock
SKU
510-G3127311
Roof Curb Adapter, Curb Side Sq O D 21 In
This Roof Curb Adapter is designed to adapt 19 inch fan bases to fit 21 inch roof curbs, making it compatible with downblast, filtered supply, and upblast fans. Made of 18 gauge steel, it features a galvanized finish and includes 16 fasteners for secure installation. The adapter's compact design allows for easy installation and adaptability, making it ideal for various applications, including commercial and industrial settings. Its durable construction ensures long-lasting performance, while its ease of use simplifies the installation process, reducing labor costs and increasing efficiency.
Top product features:
- Adapts 19 in fan base to fit 21 in roof curb
- Includes (8) 1/4-20 Tinnerman speed nut and (8) 1/4-20 x 3/4 bolts for secure fastening
- Constructed with 18 ga steel material for durability
Top product applications:
- Downblast Fans
- Filtered Supply Fans
- Upblast Fans
Roof Curb Adapter, Adapter Type Increaser, For Fan Base Size 18 1/2 in, For Curb Size 21 in, Material Steel, For Fan Type Downblast Fans, Filtered Supply Fans, Upblast Fans, Curb Side Width 21 in, Fan Side Width 18 1/2 in, Finish Galvanized, Function Adapts 19 in Fan Base to Fit 21 in Roof Curb, Includes (8) 1/4-20 Tinnerman Speed Nut, (8) 1/4-20 x 3/4 Bolts, Metal Material Thickness 18 ga, Number of Fasteners per side 2, Overall Height 5 in, Top Flange Height 2 1/2 in
Additional Information
- Country of Origin: US
- Drop Ship Item: No
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 1 days
- Minimum Order Quantity: 1
- Unit of Measure: EA
- Package Length: 28.00
- Package Width: 22.00
- Package Height: 5.50
- Package Weight: 8.99
Product info last updated on March 11, 2026 10:51am UTC
Category: Roof Ventilators