We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

Dayton Roof Curb Adapter: 29 1/2 in Fan Base, 40 1/2 in Curb - Roof-Curb Adapters
DaytonRoof-Curb Adapters

Dayton Roof Curb Adapter: 29 1/2 in Fan Base, 40 1/2 in Curb

The Dayton 20UV27 is a steel roof-curb adapter finished in galvanized steel, designed to adapt a 30-inch fan base to fit a 40.5-inch roof curb for downblast fans. It includes (8) 1/4-20 x 3/4 bolts for installation.

SKU 3G-OTH-79230

Brand
Dayton
Item
Roof Curb Adapter: 29 1/2 in Fan Base, 40 1/2 in Curb
Category
Roof-Curb Adapters
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
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

Technical Specifications

Dayton
Manufacturer Part Number
20UV27
Material
Steel
Finish
Galvanized
Function
Adapts 30 in Fan Base to Fit 40.5 in Roof Curb
Includes
(8) 1/4-20 x 3/4 Bolts
For Fan Type
Downblast Fans
View Full Spec Sheet

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 20UV27 is a steel roof-curb adapter finished in galvanized steel, designed to adapt a 30-inch fan base to fit a 40.5-inch roof curb for downblast fans. It includes (8) 1/4-20 x 3/4 bolts for installation.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Dayton 20UV27 roof curb adapter used for?

The Dayton 20UV27 roof curb adapter is used to adapt a 30-inch fan base to fit a 40.5-inch roof curb for downblast fans. It is made of galvanized steel and includes eight 1/4-20 x 3/4 bolts for installation, ensuring a secure fit in commercial or industrial ventilation systems.

What are the specifications of the Dayton 20UV27 roof curb adapter?

The Dayton 20UV27 roof curb adapter has a galvanized steel finish, adapts a 30-inch fan base to a 40.5-inch roof curb, and is designed for downblast fans. It includes eight 1/4-20 x 3/4 bolts. The manufacturer part number is 20UV27, and the material is steel.

Where to buy the Dayton 20UV27 roof curb adapter worldwide?

You can source the Dayton 20UV27 roof curb adapter from 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide reliable sourcing for this Dayton part.

How to install the Dayton 20UV27 roof curb adapter?

To install the Dayton 20UV27 roof curb adapter, first align the adapter over the 40.5-inch roof curb. Secure the 30-inch fan base onto the adapter using the included eight 1/4-20 x 3/4 bolts. Ensure all bolts are tightened evenly for a weather-tight seal. Follow standard roof-curb installation practices for safety.

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-curb adapters. 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

Similar products

Matched by specification & description
Roof Curb Adapter: 21 1/2 in Fan Base, 26 in Curb, Adapts 22 in Fan Base to Fit 26 in Roof Curb (MPN 3AZK9). Key specifications — Finish: Galvanized; For Fan Type: Downblast Fans; Function: Adapts 22 in Fan Base to Fit 26 in Roof Curb; Manufacturer Part Number: 3AZK9; Brand: DAYTON; Includes: (8) 1/4-20 x 3/4 Bolts; Material: Steel.
Dayton
Roof Curb Adapter: 21 1/2 in Fan Base, 26 in Curb, Adapts 22 in Fan Base to Fit 26 in Roof Curb (MPN 3AZK9). Key specifications — Finish: Galvanized; For Fan Type: Downblast Fans; Function: Adapts 22 in Fan Base to Fit 26 in Roof Curb; Manufacturer Part Number: 3AZK9; Brand: DAYTON; Includes: (8) 1/4-20 x 3/4 Bolts; Material: Steel.
Roof Curb Adapter: 45 1/2 in Fan Base, 42 in Curb, Adapts 46 in Fan Base to Fit 42 in Roof Curb (MPN 3AZK7). Key specifications — Finish: Galvanized; For Fan Type: Downblast Fans; Function: Adapts 46 in Fan Base to Fit 42 in Roof Curb; Manufacturer Part Number: 3AZK7; Brand: DAYTON; Includes: (12) 1/4-20 x 3/4 Bolts; Material: Steel.
Dayton
Roof Curb Adapter: 45 1/2 in Fan Base, 42 in Curb, Adapts 46 in Fan Base to Fit 42 in Roof Curb (MPN 3AZK7). Key specifications — Finish: Galvanized; For Fan Type: Downblast Fans; Function: Adapts 46 in Fan Base to Fit 42 in Roof Curb; Manufacturer Part Number: 3AZK7; Brand: DAYTON; Includes: (12) 1/4-20 x 3/4 Bolts; Material: Steel.
Roof Curb Adapter: 40 in Fan Base, 45 1/2 in Curb, Mfr Part # 3AZL4. Key specifications — Finish: Galvanized; For Fan Type: Upblast Fans; Function: Adapts 40-1/2 in Fan Base to Fit 44-1/2 in Roof Curb; Manufacturer Part Number: 3AZL4; Brand: DAYTON; Includes: (12) 1/4-20 x 3/4 Bolts; Material: Steel.
Dayton
Roof Curb Adapter: 40 in Fan Base, 45 1/2 in Curb, Mfr Part # 3AZL4. Key specifications — Finish: Galvanized; For Fan Type: Upblast Fans; Function: Adapts 40-1/2 in Fan Base to Fit 44-1/2 in Roof Curb; Manufacturer Part Number: 3AZL4; Brand: DAYTON; Includes: (12) 1/4-20 x 3/4 Bolts; Material: Steel.
Roof Curb Adapter: 21 1/2 in Fan Base, 20 in Curb, Adapts 22 in Fan Base to Fit 20 in Roof Curb (MPN 3AZK3). Key specifications — Finish: Galvanized; For Fan Type: Upblast Fans; Function: Adapts 22 in Fan Base to Fit 20 in Roof Curb; Manufacturer Part Number: 3AZK3; Brand: DAYTON; Includes: (8) 1/4-20 Tinnerman Speed Nut; Material: Steel.
Dayton
Roof Curb Adapter: 21 1/2 in Fan Base, 20 in Curb, Adapts 22 in Fan Base to Fit 20 in Roof Curb (MPN 3AZK3). Key specifications — Finish: Galvanized; For Fan Type: Upblast Fans; Function: Adapts 22 in Fan Base to Fit 20 in Roof Curb; Manufacturer Part Number: 3AZK3; Brand: DAYTON; Includes: (8) 1/4-20 Tinnerman Speed Nut; Material: Steel.
Roof Curb Adapter: 29 1/2 in Fan Base, 26 in Curb, Adapts 30 in Fan Base to Fit 26 in Roof Curb (MPN 3AZK5). Key specifications — Finish: Galvanized; For Fan Type: Filtered Supply Fans; Function: Adapts 30 in Fan Base to Fit 26 in Roof Curb; Manufacturer Part Number: 3AZK5; Brand: DAYTON; Includes: (8) 1/4-20 x 3/4 Bolts; Material: Steel.
Dayton
Roof Curb Adapter: 29 1/2 in Fan Base, 26 in Curb, Adapts 30 in Fan Base to Fit 26 in Roof Curb (MPN 3AZK5). Key specifications — Finish: Galvanized; For Fan Type: Filtered Supply Fans; Function: Adapts 30 in Fan Base to Fit 26 in Roof Curb; Manufacturer Part Number: 3AZK5; Brand: DAYTON; Includes: (8) 1/4-20 x 3/4 Bolts; Material: Steel.

More from Dayton

View all Dayton parts
Roof Curb Adapter: 29 1/2 in Fan Base, 34 in Curb, Adapts 30 in Fan Base to Fit 34 in Roof Curb (MPN 3AZL2). Key specifications — Finish: Galvanized; For Fan Type: Downblast Fans; Function: Adapts 30 in Fan Base to Fit 34 in Roof Curb; Manufacturer Part Number: 3AZL2; Brand: DAYTON; Includes: (8) 1/4-20 Tinnerman Speed Nut; Material: Steel.
Dayton
Roof Curb Adapter: 29 1/2 in Fan Base, 34 in Curb, Adapts 30 in Fan Base to Fit 34 in Roof Curb (MPN 3AZL2). Key specifications — Finish: Galvanized; For Fan Type: Downblast Fans; Function: Adapts 30 in Fan Base to Fit 34 in Roof Curb; Manufacturer Part Number: 3AZL2; Brand: DAYTON; Includes: (8) 1/4-20 Tinnerman Speed Nut; Material: Steel.
Roof Curb Adapter: 33 1/2 in Fan Base, 40 in Curb, Adapts 34 in Fan Base to Fit 40 in Roof Curb (MPN 3AZL3). Key specifications — Finish: Galvanized; For Fan Type: Downblast Fans; Function: Adapts 34 in Fan Base to Fit 40 in Roof Curb; Manufacturer Part Number: 3AZL3; Brand: DAYTON; Includes: (12) 1/4-20 x 3/4 Bolts; Material: Steel.
Dayton
Roof Curb Adapter: 33 1/2 in Fan Base, 40 in Curb, Adapts 34 in Fan Base to Fit 40 in Roof Curb (MPN 3AZL3). Key specifications — Finish: Galvanized; For Fan Type: Downblast Fans; Function: Adapts 34 in Fan Base to Fit 40 in Roof Curb; Manufacturer Part Number: 3AZL3; Brand: DAYTON; Includes: (12) 1/4-20 x 3/4 Bolts; Material: Steel.
Roof Curb Adapter: 18 1/2 in Fan Base, 21 in Curb, Adapts 19 in Fan Base to Fit 21 in Roof Curb (MPN 3AZK8). Key specifications — Finish: Galvanized; For Fan Type: Downblast Fans; Function: Adapts 19 in Fan Base to Fit 21 in Roof Curb; Manufacturer Part Number: 3AZK8; Brand: DAYTON; Includes: (8) 1/4-20 Tinnerman Speed Nut; Material: Steel.
Dayton
Roof Curb Adapter: 18 1/2 in Fan Base, 21 in Curb, Adapts 19 in Fan Base to Fit 21 in Roof Curb (MPN 3AZK8). Key specifications — Finish: Galvanized; For Fan Type: Downblast Fans; Function: Adapts 19 in Fan Base to Fit 21 in Roof Curb; Manufacturer Part Number: 3AZK8; Brand: DAYTON; Includes: (8) 1/4-20 Tinnerman Speed Nut; Material: Steel.
Roof Curb Adapter: 25 1/2 in Fan Base, 30 in Curb, Adapts 26 in Fan Base to Fit 30 in Roof Curb (MPN 3AZL1). Key specifications — Finish: Galvanized; For Fan Type: Downblast Fans; Function: Adapts 26 in Fan Base to Fit 30 in Roof Curb; Manufacturer Part Number: 3AZL1; Brand: DAYTON; Includes: (8) 1/4-20 Tinnerman Speed Nut; Material: Steel.
Dayton
Roof Curb Adapter: 25 1/2 in Fan Base, 30 in Curb, Adapts 26 in Fan Base to Fit 30 in Roof Curb (MPN 3AZL1). Key specifications — Finish: Galvanized; For Fan Type: Downblast Fans; Function: Adapts 26 in Fan Base to Fit 30 in Roof Curb; Manufacturer Part Number: 3AZL1; Brand: DAYTON; Includes: (8) 1/4-20 Tinnerman Speed Nut; Material: Steel.
Roof Curb Adapter: 18 1/2 in Fan Base, 17 in Curb, Adapts 19 in Fan Base to Fit 17 in Roof Curb (MPN 3AZK1). Key specifications — Finish: Galvanized; For Fan Type: Downblast Fans; Function: Adapts 19 in Fan Base to Fit 17 in Roof Curb; Manufacturer Part Number: 3AZK1; Brand: DAYTON; Includes: (8) 1/4-20 Tinnerman Speed Nut; Material: Steel.
Dayton
Roof Curb Adapter: 18 1/2 in Fan Base, 17 in Curb, Adapts 19 in Fan Base to Fit 17 in Roof Curb (MPN 3AZK1). Key specifications — Finish: Galvanized; For Fan Type: Downblast Fans; Function: Adapts 19 in Fan Base to Fit 17 in Roof Curb; Manufacturer Part Number: 3AZK1; Brand: DAYTON; Includes: (8) 1/4-20 Tinnerman Speed Nut; Material: Steel.
Roof Curb Adapter: 21 1/2 in Fan Base, 18 in Curb, Adapts 22 in Fan Base to Fit 18 in Roof Curb (MPN 3AZK2). Key specifications — Finish: Galvanized; For Fan Type: Upblast Fans; Function: Adapts 22 in Fan Base to Fit 18 in Roof Curb; Manufacturer Part Number: 3AZK2; Brand: DAYTON; Includes: (8) 1/4-20 Tinnerman Speed Nut; Material: Steel.
Dayton
Roof Curb Adapter: 21 1/2 in Fan Base, 18 in Curb, Adapts 22 in Fan Base to Fit 18 in Roof Curb (MPN 3AZK2). Key specifications — Finish: Galvanized; For Fan Type: Upblast Fans; Function: Adapts 22 in Fan Base to Fit 18 in Roof Curb; Manufacturer Part Number: 3AZK2; Brand: DAYTON; Includes: (8) 1/4-20 Tinnerman Speed Nut; Material: Steel.
Roof Curb Adapter: 25 1/2 in Fan Base, 22 in Curb, Adapts 26 in Fan Base to Fit 22 in Roof Curb (MPN 3AZK4). Key specifications — Finish: Galvanized; For Fan Type: Downblast Fans; Function: Adapts 26 in Fan Base to Fit 22 in Roof Curb; Manufacturer Part Number: 3AZK4; Brand: DAYTON; Includes: (8) 1/4-20 Tinnerman Speed Nut; Material: Steel.
Dayton
Roof Curb Adapter: 25 1/2 in Fan Base, 22 in Curb, Adapts 26 in Fan Base to Fit 22 in Roof Curb (MPN 3AZK4). Key specifications — Finish: Galvanized; For Fan Type: Downblast Fans; Function: Adapts 26 in Fan Base to Fit 22 in Roof Curb; Manufacturer Part Number: 3AZK4; Brand: DAYTON; Includes: (8) 1/4-20 Tinnerman Speed Nut; Material: Steel.
Roof Curb Adapter: 33 1/2 in Fan Base, 30 in Curb, Adapts 34 in Fan Base to Fit 30 in Roof Curb (MPN 3AZK6). Key specifications — Finish: Galvanized; For Fan Type: Downblast Fans; Function: Adapts 34 in Fan Base to Fit 30 in Roof Curb; Manufacturer Part Number: 3AZK6; Brand: DAYTON; Includes: (12) 1/4-20 x 3/4 Bolts; Material: Steel.
Dayton
Roof Curb Adapter: 33 1/2 in Fan Base, 30 in Curb, Adapts 34 in Fan Base to Fit 30 in Roof Curb (MPN 3AZK6). Key specifications — Finish: Galvanized; For Fan Type: Downblast Fans; Function: Adapts 34 in Fan Base to Fit 30 in Roof Curb; Manufacturer Part Number: 3AZK6; Brand: DAYTON; Includes: (12) 1/4-20 x 3/4 Bolts; Material: Steel.