What is the hole dimensions or rough opening size?

Height and width are less than 12.5” each. I cut a 13x13 opening to make room for J-channels on the siding outside the opening.

What is the rough framing opening for 20"

The size of the whole 20" shutter exhaust fan is 23.43X23.43", the size of the whole shutters is 15.75X15.75". For detailed sizes of this venting fan, please find the fifth pictures of product page.

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VENTISOL 20 Inch Shutter Exhaust Fan Wall Mounted, 3500CFM Exhaust Fan with Pre-Installed 1.65m Power Cord, Ventilation fan for Greenhouse, Garages, Attic, Shops, Chicken Coop, Black

Product ID: 372301676

Details

Brand
VENTISOL
Color
Black
Electric fan design
Exhaust Fan
Mounting Type
Wall Mount
Power Source
ac
Product Dimensions
8.86"D x x

💨3500 CFM airflow

🔧Pre-installed 1.65m power cord

🛡️Corrosion-resistant aluminum blades

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Description

💨 Elevate your airflow, elevate your space—ventilate like a pro!

PLUG PLAY INSTALLATION - Get up and running in 5 minutes with a pre-installed power cord—no electrician needed.
BUILT TO BRAVE THE ELEMENTS - Rugged all-metal frame and corrosion-resistant blades ensure long-lasting durability and rust-free performance.
BREATHE EASY WITH 3500 CFM POWER - Experience unstoppable airflow that keeps your space fresh and cool, no matter the season.
SMART AUTO SHUTTERS FOR PROTECTION - Automatic gravity shutters shield your fan from rain and debris when off, extending its lifespan effortlessly.
VERSATILE VENTILATION FOR EVERY SPACE - Perfect for attics, greenhouses, garages, workshops, and even chicken coops—upgrade your airflow game everywhere.

The VENTISOL 20 Inch Shutter Exhaust Fan delivers a powerful 3500 CFM airflow with a robust 1309 RPM motor, designed for efficient ventilation in diverse environments. Featuring corrosion-resistant aluminum blades and an all-metal frame, it promises durability and rust protection. Installation is a breeze with a pre-installed 1.65m power cord, while automatic aluminum shutters protect the fan from weather when not in use. Ideal for attics, greenhouses, garages, and workshops, this wall-mounted exhaust fan combines performance with convenience for year-round comfort.

Specifications

ASIN	B09371678W
Air Flow Capacity	3500 cfm
Best Sellers Rank	#39,382 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #115 in Household Ventilation Fans
Blade Length	20 inches
Blade Material	Aluminum
Brand	VENTISOL
Brand Name	VENTISOL
Collection Name	Home,Shop
Color	Black
Control Method	Remote
Controller Type	Button Control
Customer Reviews	4.5 out of 5 stars 351 Reviews
Electric Fan Design	Exhaust Fan
Electric fan design	Exhaust Fan
Finish Type	Powder Coated
Included Components	with power cord
Indoor Outdoor Usage	Indoor
Installation Type	Wall Mounted
Item Dimensions D x W x H	8.86"D x 24.43"W x 24.43"H
Item Type Name	Shutter Exhaust Fana
Item Weight	9.7 pounds
Material	Aluminum
Model Number	G-20EF
Mounting Type	Wall Mount
Number of Blades	3
Number of Power Levels	1
Number of Speeds	1
Part Number	G-EF
Power Source	ac
Product Dimensions	8.86"D x 24.43"W x 24.43"H
Recommended Uses For Product	Air Circulation, Cooling, Exhausting, Ventilating
Room Type	Garage, Greenhouse, Workshop, Garden, Attic, Chicken Coop, Facotry, Warehouse, Garage, Kitchen
Size	20 Inch
Special Features	Automatic aluminum shutters
Speed	1309 rpm
Style	20 inch with Power Cord
Switch Type	Push Button
Unit Count	1 Count
Voltage	120 volts
Wattage	120 watts

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R7768

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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