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Galvanized steel wall collar, square frame with mounting angles, 22 1/4in overall

Dayton

Dayton 16D553 Wall Collar for 18in Blade, 22 1/4in Overall, Galvanized Steel

SKU CH-7CRC-2GY6R

Galvanised-steel wall collar fits 18-inch blade fans with a 22 1/4-inch square frame and includes four mounting angles

  • typeClosed Base
  • Fits 18 in blade diameter for precise airflow alignment
  • Galvanized steel construction resists corrosion in humid environments
  • 22 1/4 in overall dimensions match standard wall cut-outs
  • 20 ga steel thickness provides rigid structural support
  • Includes four mounting angles and side panels for complete installation

Wall Collar for 18-Inch Blade

The Dayton 16D553 wall collar is built to frame an 18-inch fan blade opening in commercial or industrial ventilation projects. Its galvanised steel construction resists corrosion in damp or outdoor environments. The unit includes four mounting angles and four side panels for a complete installation kit.

22 1/4-Inch Square Frame with 12 1/2-Inch Depth

The collar measures 22 1/4 inches overall height and width, matching a 23 5/8-inch square cut-out. A 12 1/2-inch overall depth provides a solid mounting surface for the fan housing. Twenty-gauge steel thickness delivers rigid support without excessive weight.

Closed-Base Design for Direct Duct Connection

The closed base creates a sealed transition between the fan and the wall opening, preventing air leakage. Four included mounting angles secure the collar to the surrounding structure. Galvanised finish allows direct exposure to weather without additional coating.

Highlights

  • Fits 18 in blade diameter for precise airflow alignment
  • Galvanized steel construction resists corrosion in humid environments
  • 22 1/4 in overall dimensions match standard wall cut-outs
  • 20 ga steel thickness provides rigid structural support
  • Includes four mounting angles and side panels for complete installation

Specifications

BrandDayton
typeClosed Base

Questions about this item

Will the 22 1/4in overall height and 23 5/8in cut-out height align with my existing 18in blade shutter frame?

The collar measures 22 1/4in tall overall and fits a 23 5/8in cut-out height, so it matches standard 18in blade openings; verify your rough opening before mounting.

How can I confirm the 20ga galvanized steel collar is seated correctly after installation?

Check that the four mounting angles sit flush against the wall, the four side panels form a continuous sleeve 12 1/2in deep, and the galvanized finish shows no gaps around the 22 1/4in square frame.

Does the box include the four mounting angles and four side panels, or must I buy separate fasteners?

The package supplies the collar with four mounting angles and four side panels; you will need to provide your own screws, bolts or anchors for the wall material.

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