Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

Dayton Roof Curb: Adj Nonventilated Curbs, Square Curb, 19 1/2 in to 28 in Inside Dim - Roof Curbs
DaytonRoof Curbs

Dayton Roof Curb: Adj Nonventilated Curbs, Square Curb, 19 1/2 in to 28 in Inside Dim

The Dayton Roof Curb: Adj Nonventilated Curbs (SKU 3G-OTH-78923) is a steel, galvanized roof curb designed for downblast fans with a 25 in to 30-1/2 in square base. It features an adjustable design with an inside…

SKU 3G-OTH-78923

Brand
Dayton
Item
Roof Curb: Adj Nonventilated Curbs, Square Curb, 19 1/2 in to 28 in Inside Dim
Category
Roof Curbs
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Dayton
Type
Square Curb, Mfr Part # 2ZV83
Material
Steel
Finish
Galvanized
Standards
UL 705
Inside Dim
19 1/2 in to 28 in
For Fan Type
Downblast Fans
For Use With
25 in to 30-1/2 in Square Base
Curb Inside Width
19-1/2 in to 28 in
Curb Outside Width
23-1/2 in to 32 in

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

Dayton Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Dayton Roof Curb: Adj Nonventilated Curbs (SKU 3G-OTH-78923) is a steel, galvanized roof curb designed for downblast fans with a 25 in to 30-1/2 in square base. It features an adjustable design with an inside width of 19-1/2 in to 28 in and an outside width of 23-1/2 in to 32 in, complying with UL 705 standards.

Frequently Asked Questions

What is the Dayton roof curb used for?

The Dayton is an adjustable nonventilated roof curb designed for downblast fans with a 25 in to 30-1/2 in square base. It provides a galvanized steel mounting platform that seals the roof opening and supports the fan, complying with UL 705 standards.

What are the specifications of the Dayton roof curb?

The Dayton roof curb has an inside width of 19-1/2 in to 28 in and an outside width of 23-1/2 in to 32 in. It is made of galvanized steel, complies with UL 705, and is for use with downblast fans having a 25 in to 30-1/2 in square base.

Where to buy the Dayton roof curb worldwide?

3G Electric supplies the Dayton roof curb worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us to order this adjustable nonventilated curb for downblast fans.

How to install the Dayton adjustable roof curb?

Install the Dayton by securing the curb to the roof structure with appropriate fasteners, ensuring the opening aligns with the fan base. Adjust the inside width from 19-1/2 in to 28 in to fit the fan. Seal all joints per local codes and UL 705 guidelines.

Used in

Common applications for Dayton
HVAC ventilation — DAYTON centrifugal upblast roof exhaust fans (SKU 7M7U3) for kitchen exhaust systems
Mechanical power transmission — DAYTON HTD timing pulleys (SKU 404GV0) for conveyor belt drives
Process water handling — DAYTON self-priming centrifugal pumps (SKU 2ZXT4) for dewatering or transfer
Roofing and building services — DAYTON fixed ventilated roof curbs (SKU 4HX59) for filtered supply fan installations
Material handling — DAYTON latch assemblies (SKU 2KEN4) for electric chain hoist hook safety
Industrial air movement — DAYTON downblast roof exhaust fans (SKU 3HFL9) for clean air exhaust in manufacturing plants

Dayton Products

3G Electric supplies Dayton roof curbs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
Roof Curb: Adj Nonventilated Curbs, Square Curb, 10 1/2 in to 19 in Inside Dim, Mfr Part #
Dayton
Roof Curb: Adj Nonventilated Curbs, Square Curb, 10 1/2 in to 19 in Inside Dim, Mfr Part #
Roof Curb: Adj Nonventilated Curbs, Square Curb, 60 in to 68 1/2 in Inside Dim, Mfr Part #
Dayton
Roof Curb: Adj Nonventilated Curbs, Square Curb, 60 in to 68 1/2 in Inside Dim, Mfr Part #
Roof Curb: Adj Nonventilated Curbs, Square Curb, 37 in to 45 1/2 in Inside Dim, Mfr Part #
Dayton
Roof Curb: Adj Nonventilated Curbs, Square Curb, 37 in to 45 1/2 in Inside Dim, Mfr Part #
Roof Curb: Adj Nonventilated Curbs, Square Curb, 28 1/2 in to 37 in Inside Dim, Mfr Part #
Dayton
Roof Curb: Adj Nonventilated Curbs, Square Curb, 28 1/2 in to 37 in Inside Dim, Mfr Part #
Roof Curb: Adj Nonventilated Curbs, Square Curb, 46 in to 54 1/2 in Inside Dim, Mfr Part #
Dayton
Roof Curb: Adj Nonventilated Curbs, Square Curb, 46 in to 54 1/2 in Inside Dim, Mfr Part #
Roof Curb: Fixed Nonventilated Curbs, Square Curb, 62 x 62 in Inside Dim, 65 in x 65 in Outside Dim
Dayton
Roof Curb: Fixed Nonventilated Curbs, Square Curb, 62 x 62 in Inside Dim, 65 in x 65 in Outside Dim

More from Dayton

View all Dayton parts
Roof Curb: Fixed Nonventilated Curbs, Square Curb, 68 x 68 in Inside Dim, 71 in x 71 in Outside Dim
Dayton
Roof Curb: Fixed Nonventilated Curbs, Square Curb, 68 x 68 in Inside Dim, 71 in x 71 in Outside Dim
Roof Curb: Fixed Nonventilated Curbs, Square Curb, 11.5 x 12 1/2 in Inside Dim, Mfr Part #
Dayton
Roof Curb: Fixed Nonventilated Curbs, Square Curb, 11.5 x 12 1/2 in Inside Dim, Mfr Part #
Roof Curb: Fixed Nonventilated Curbs, Square Curb, 31.5 x 31 1/2 in Inside Dim, Mfr Part #
Dayton
Roof Curb: Fixed Nonventilated Curbs, Square Curb, 31.5 x 31 1/2 in Inside Dim, Mfr Part #
Roof Curb: Fixed Nonventilated Curbs, Square Curb, 24 x 24 in Inside Dim, 27 in x 27 in Outside Dim
Dayton
Roof Curb: Fixed Nonventilated Curbs, Square Curb, 24 x 24 in Inside Dim, 27 in x 27 in Outside Dim
Roof Curb: Fixed Nonventilated Curbs, Square Curb, 41.5 x 41 1/2 in Inside Dim, Mfr Part #
Dayton
Roof Curb: Fixed Nonventilated Curbs, Square Curb, 41.5 x 41 1/2 in Inside Dim, Mfr Part #
Roof Curb: Fixed Nonventilated Curbs, Square Curb, 20 x 20 in Inside Dim, 23 in x 23 in Outside Dim
Dayton
Roof Curb: Fixed Nonventilated Curbs, Square Curb, 20 x 20 in Inside Dim, 23 in x 23 in Outside Dim
Roof Curb: Fixed Nonventilated Curbs, Square Curb, 47.5 x 47 1/2 in Inside Dim, Mfr Part #
Dayton
Roof Curb: Fixed Nonventilated Curbs, Square Curb, 47.5 x 47 1/2 in Inside Dim, Mfr Part #
Roof Curb: Fixed Nonventilated Curbs, Square Curb, 17.5 x 17 1/2 in Inside Dim, Mfr Part #
Dayton
Roof Curb: Fixed Nonventilated Curbs, Square Curb, 17.5 x 17 1/2 in Inside Dim, Mfr Part #