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

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

🔌1.65m pre-installed power cord

⚙️1309 RPM motor speed

$794.49

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Description

💨 Elevate your airflow game—because stale air is so last season!

SMART AUTOMATIC SHUTTERS - Gravity-operated shutters protect your fan from rain and debris when off—maintenance-free peace of mind.
VERSATILE VENTILATION SOLUTION - Perfect for garages, greenhouses, workshops, attics, and even chicken coops—upgrade any space instantly.
EFFORTLESS 5 MINUTE INSTALLATION - Pre-installed 1.65m power cord means no wiring headaches—plug and play convenience.
BUILT TO LAST WITH RUGGED DURABILITY - Corrosion-resistant aluminum blades and steel guards ensure long-lasting performance.
POWERFUL AIRFLOW FOR ULTIMATE COMFORT - 3500 CFM moves air fast to keep your space cool and fresh all year round.

The VENTISOL 20 Inch Shutter Exhaust Fan delivers a robust 3500 CFM airflow powered by a 1309 RPM motor, ensuring efficient ventilation for a variety of spaces. Featuring corrosion-resistant aluminum blades, automatic gravity shutters, and a pre-installed 1.65m power cord, this wall-mounted fan combines durability with easy installation. Ideal for garages, greenhouses, attics, and workshops, it’s engineered to keep your environment cooler, fresher, and more comfortable year-round.

Specifications

ASIN	B09371678W
Air Flow Capacity	3500 Cubic Feet Per Minute
Best Sellers Rank	#48,070 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #171 in Household Ventilation Fans
Blade Length	20 Inches
Blade Material	Aluminum
Brand Name	VENTISOL
Collection Name	Home,Shop
Color	Black
Control Method	Remote
Controller Type	Button Control
Customer Reviews	4.5 4.5 out of 5 stars (343)
Electric Fan Design	Exhaust Fan
Finish Type	Powder Coated
Included Components	with power cord
Indoor Outdoor Usage	Indoor
Installation Type	Wall Mounted
Is Electric	Yes
Is Product Cordless	No
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
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
Standby Power Shutoff	High Efficiency (29.17 CFM/W)
Style	20 inch with Power Cord
Switch Type	Push Button
Unit Count	1.0 Count
Voltage	120 Volts
Wattage	120 watts

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