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Galvanized steel shutter fan with 20 inch blades and chrome wire guard

Canarm

Canarm GSF3-20A Shutter Fan 20 in 120V 368 cfm

SKU CH-T9X7-5QCAV

A 20-inch galvanized shutter exhaust fan moves 368 cfm at zero static pressure and includes an adjustable thermostat

  • Product typeExhaust Fans
  • Moves 368 cfm of exhaust air at zero static pressure
  • 20 inch steel blades on a galvanized shutter frame
  • 120 volt operation with built-in adjustable thermostat and bypass
  • Aluminum frame with galvalume finish resists corrosion
  • Chrome-plated wire guard protects the blade assembly

20 inch shutter exhaust fan

This Canarm GSF3-20A shutter fan moves 368 cfm of air at zero static pressure. It is designed for agricultural or industrial buildings that need high-volume exhaust through a wall opening.

Galvalume frame and steel blades

The galvanized steel blades and Galvalume aluminum frame resist corrosion in humid environments. A chrome-plated wire guard protects the moving parts. An adjustable thermostat with bypass allows automatic temperature control.

Replaces smaller wall shutters

Installers upgrading from lower-capacity shutters gain the 20 inch blade diameter and 368 cfm rating in a single unit. The integrated thermostat removes the need for a separate control box. Not suited for ducted systems that require positive static pressure performance.

How it compares

Measured against everything we stock in Bathroom Exhaust Fans & Parts, at today’s prices. Recalculated every night.

Price $312.99
Pricier than about 90% of the 27 comparable items (median $64.99).

Specifications

Product
Brand nameCANARM
Product typeExhaust Fans

Questions about this item

How is the 20 in shutter fan mounted and what step is often missed?

Mount the galvanized frame in the wall opening, wire the 120 V supply to the motor and adjustable thermostat, then secure the chrome-plated wire guard; the step often missed is setting the thermostat bypass before closing the shutter.

What maintenance will the steel blades and aluminum frame need later?

Periodically wipe dust from the steel blades and check the chrome-plated wire guard for corrosion; lubricate the motor bearings if the manufacturer specifies intervals.

At what airflow limit does the fan reach its rated capacity under sustained use?

The fan delivers 368 cfm exhaust airflow at 0.000 in static pressure; higher duct resistance will reduce output below that figure.

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