20" Weather-Shield Performance Box Fan, 3-Speed (3720)

The 20" Weather-Shield Performance Box Fan, 3-Speed (3720) is listed in our Box Fans collection. Use the verified features and specifications below to compare it with your space, equipment, and intended use.

Key features

• 3 Quiet Speeds - makes this fan ideal for the bedroom, living room, kitchen, or home office. The quiet yet powerful motor provides a cooling breeze throughout the room.
• Save-Smart - means you'll pay less than $0.02 per hour to operate the fan. Combine this with up to 30% more air velocity and you have an energy efficient fan to use year round.
• Weather Shield Motor - allows you to use the fan worry free in an open window. Thanks to the weather shield motor you can leave the fan in place during minor rain.
• Innovative Wind Ring System - is designed to increase air velocity without increasing power consumption. This allows the fan to circulate more air compared to traditional fans.
• Simple No-Tools Assembly - allows you to take the fan out of the box and have it working in seconds. Just clip the stabilizing feet onto the fan, stand up the fan, and it's ready to use.

Product details

• Color: Standard
• Electric fan design: Window Fan
• Style: Traditional
• Product Dimensions: 4.75"D x 21.25"W x 22.5"H
• Room Type: Bedroom, Living Room
• Special Feature: Energy Efficient
• Recommended Uses For Product: Bedroom, Home
• Mounting Type: Floor Mount, Window Mount, Wall Mount

Before ordering

Confirm the dimensions, power requirements, replacement-part compatibility, included pieces, and care instructions shown for the selected item. Current price, inventory, shipping, and taxes are confirmed at checkout.

Frequently asked questions

What kind of product is this?

This item is categorized as Box Fans.

What should I check before buying?

Compare the listed measurements, materials, power source, capacity, and compatibility details with your requirements.

Where can I confirm availability?

Use this product page and checkout for the current selling price, discount, inventory, delivery options, and applicable taxes.