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Galvanized steel wall collar for 20 in fan, rectangular frame with mounting angles

Dayton

Dayton 3FKF3 Wall Collar Galvanized Steel 20 in Fan Diameter

SKU CH-CXGK-SZ52M

Galvanised-steel wall collar fits a 20 in fan blade with 25 in cut-out dimensions and 17 in depth

  • Product typeClosed Base
  • Designed for 20 in blade diameter fans
  • Galvanized steel finish resists corrosion in damp areas
  • Closed base design simplifies wall mounting installation
  • Includes four mounting angles and four side panels
  • Fits 25 5/8 in cut-out height and width openings

Wall Collar for 20 Inch Fans

This galvanized steel wall collar is designed to fit fans with a 20 inch blade diameter. It provides a finished mounting interface between the fan housing and the building opening. The unit includes four mounting angles and four side panels for assembly. It suits installers completing through-wall ventilation projects.

Cut-Out Dimensions and Depth

The accessory requires a square cut-out measuring 25 5/8 inches in both height and width. Its overall frame measures 24 1/4 inches square with an overall depth of 17 1/2 inches. The 18 gauge steel construction defines the structural limit of the rough opening. Installers must verify that the wall cavity accommodates the full depth.

Galvanized Steel Construction

The galvanized finish protects the steel from corrosion in exposed wall installations. The closed base design and included hardware create a rigid frame for securing the fan unit. Mounting angles attach to the wall structure while side panels enclose the opening. The assembly delivers a permanent, weather-resistant seal.

How it compares

Measured against everything we stock in Fan Motors, Parts & Clip-On Fans, at today’s prices. Recalculated every night.

Price $189.99
Pricier than about 78% of the 473 comparable items (median $38.99).

Specifications

Product
Brand nameDayton
Product typeClosed Base

Questions about this item

Is the 20 in fan diameter the only size this wall collar fits?

The collar is made for a 20 in blade diameter with cut-out dimensions of 25 5/8 in by 25 5/8 in and an overall depth of 17 1/2 in.

How much clearance does the 17 1/2 in overall depth add behind the wall?

The 17 1/2 in depth extends into the space behind the wall, so allow at least that much room for the collar and its four mounting angles.

What does the galvanized steel finish and 18 ga thickness mean for outdoor mounting?

The galvanized coating resists corrosion on the 18 ga steel panels and four side panels supplied, making the collar suitable for exterior wall installations.

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