Does the screen freeze in the winter?

Not yet it’s under the wave so moisture is not a problem

What is the measurement between back of flange and tabs? Is this for 3/8" or 1/2" (other) drywall?

Yikes. I don't recall tabs. I'm pretty sure they are universal. I'm almost certain they would be fine with either. I'm using them as air intakes for my engine on my boat. They are mounted in 3/16" Fiberglass. I did use an adhesive sealant as they are in my cockpit out in the elements.

Is the diameter of the hole required four inches or is the diameter of the grill four inches?:

I used a 4-1/8 cutter and it fit just fine. The actual dimension of the round sleeve that your vent tube slides onto is 3.7"

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HG Power Soffit Vents 4 inch, Round Vent Cover with Built-in Screen Mesh, ABS...

HG Power Soffit Vents 4 inch, Round Vent Cover with Built-in Screen Mesh, ABS...

Product ID: 57880113

Details

Brand
HG Power
Color
White
Item Weight
0.11 Kilograms
Material
Acrylonitrile
Vehicle Service Type
Bike Car Truck

🔧Lightweight & easy to install anywhere

⚙️Durable ABS material ensures long-lasting use

🛡️Built-in screen mesh for debris & pest protection

R627

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Description

🌬️ Elevate your space with airflow that works as hard as you do!

ENGINEERED FOR ENDURANCE - Premium ABS construction guarantees durability and hassle-free maintenance.
BREATHE EASY LIVE BETTER - Built-in screen mesh keeps air fresh while blocking unwanted pests and debris.
INSTALL ANYWHERE ANYTIME - Lightweight design supports versatile wall or ceiling mounting with zero fuss.
EFFORTLESS AIRFLOW CONTROL - Detachable white panel allows quick airflow adjustments tailored to your space.
VERSATILITY MEETS PERFORMANCE - Perfect for bathrooms, kitchens, garages, and attics—upgrade your indoor air quality now.

The HG Power 4-inch round soffit vent cover combines a built-in screen mesh with durable ABS louvers to provide efficient ventilation for various indoor spaces. Lightweight and easy to install, it offers adjustable airflow control and reliable protection against pests and debris, making it a top-rated choice for enhancing air quality in bathrooms, kitchens, garages, and attics.

Specifications

ASIN	B078RMSBRB
Best Sellers Rank	#6,869 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in Soffit Vents
Brand	HG Power
Customer Reviews	4.5 4.5 out of 5 stars (2,276)
Date First Available	January 2, 2018
Item Weight	3.84 ounces
Item model number	USPI022
Manufacturer	HG POWER
Manufacturer Part Number	USPI022
Package Dimensions	5.83 x 5.71 x 2.99 inches

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R627

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.

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TrustScore 4.5 | 7,300+ reviews

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