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Dayton Roof Curb: Fixed Nonventilated Curbs, Square Curb, 21.5 x 21 1/2 in Inside Dim - Roof Curbs

DaytonRoof Curbs

Dayton Roof Curb: Fixed Nonventilated Curbs, Square Curb, 21.5 x 21 1/2 in Inside Dim

The Dayton Roof Curb is a fixed nonventilated curb designed for use with downblast fans and a 26 in square base. This steel curb features a galvanized finish, includes a damper tray, and has an inside width of 21-1/2…

SKU 3G-OTH-78964

Brand

Dayton

Item

Roof Curb: Fixed Nonventilated Curbs, Square Curb, 21.5 x 21 1/2 in Inside Dim

Category

Roof Curbs

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Technical Specifications

Dayton

Manufacturer Part Number

2RB77 

Type

Square Curb, Mfr Part # 2RB77 

Material

Steel 

Finish

Galvanized 

Includes

Damper Tray 

Standards

UL 705 

Inside Dim

21.5 x 21 1/2 in 

For Fan Type

Downblast Fans 

For Use With

26 in Square Base 

Curb Inside Width

21-1/2 in 

Curb Outside Width

24-1/2 in 

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Dayton Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Dayton Roof Curb is a fixed nonventilated curb designed for use with downblast fans and a 26 in square base. This steel curb features a galvanized finish, includes a damper tray, and has an inside width of 21-1/2 in and an outside width of 24-1/2 in. It complies with UL 705 standards.

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

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.

Browse all Dayton products →Contact our engineers →

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