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Galvanized steel weatherhood for 20 inch fan, rectangular box with sloped top

Dayton

Dayton 3FKF2 Weatherhood Galv Steel 20 in Fan Accessory

SKU CH-F8CJ-93BYG

Galvanised steel weatherhood fits 20-inch fans with 22½-inch cut-outs and measures 24⅛ by 24⅛ by 18⅝ inches

  • typeClosed Base
  • Galvanised steel resists corrosion in outdoor installations
  • Fits 20 in blade diameter fans for direct compatibility
  • 18 ga steel thickness adds structural rigidity
  • Cut-out dimensions 22 1/2 in by 22 1/2 in simplify wall preparation
  • Overall size 24 1/8 in by 24 1/8 in by 18 5/8 in matches standard mounting requirements

Dayton 20-Inch Weatherhood

The Dayton 3FKF2 weatherhood is a galvanised steel accessory built for 20-inch diameter fans. It mounts over the fan opening to shield the assembly from rain, debris and wind-driven moisture. The 18-gauge steel construction with a closed base provides structural rigidity for permanent wall or shutter installations.

Suits exposed wall-mounted fans

This hood fits installations where the cut-out measures 22 1/2 inches square without a wall collar or 25 5/8 inches square with one. It is not suited for fans smaller or larger than the stated diameter, nor for ducted systems that require an open-base design. Buyers needing a different material finish or a non-standard cut-out size should look elsewhere.

Covers 20-inch blade diameter

The hood accommodates a 20-inch fan blade and an overall footprint of 24 1/8 inches square by 18 5/8 inches deep. It handles standard weather exposure on exterior walls but offers no airflow control or motor protection beyond the physical barrier. Installations requiring insulated housings or integrated dampers will need additional components.

Highlights

  • Galvanised steel resists corrosion in outdoor installations
  • Fits 20 in blade diameter fans for direct compatibility
  • 18 ga steel thickness adds structural rigidity
  • Cut-out dimensions 22 1/2 in by 22 1/2 in simplify wall preparation
  • Overall size 24 1/8 in by 24 1/8 in by 18 5/8 in matches standard mounting requirements

Specifications

BrandDayton
typeClosed Base

Questions about this item

What fan blade diameter must the existing fan have for this 20 in weatherhood to fit?

The weatherhood is designed for a fan with a 20 in blade diameter, so the installed fan must match that size exactly.

Will the 22 1/2 in cut-out height and width accommodate the same wall opening used by an older 20 in Dayton hood?

Yes, the cut-out height and width are both 22 1/2 in, matching the standard opening for a 20 in Dayton weatherhood.

How can I confirm the 18 ga galvanized steel hood is seated correctly after mounting?

Verify the overall height and width measure 24 1/8 in each and the depth measures 18 5/8 in, with the closed base flush against the wall collar.

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