PATIKIL 4-Inch Adjustable Round ABS Air Vent Cover

The PATIKIL 4-inch round air vent cover is an adjustable ABS vent for openings intended for a 4-inch duct or wall or ceiling hole. A panel knob adjusts the screen-mesh opening, and its twist-lock design is intended for installation in a pre-drilled opening.

At a glance

Knob adjusts the size of the screen-mesh vent opening to control airflow.
Listed for air intake or exhaust and for indoor or outdoor locations.
Twist-to-lock reverse buckle is described for pre-drilled wall or ceiling openings.

Price

$21.35Save 20%

Reference price: ~~$26.69~~

Price checked: Nov 13, 2026

View offer Ahead of Black FridayExplore the selection

Pros and cons

Pros

The adjustable opening gives users a way to change airflow without replacing the vent cover.
The stated 100 mm / 4 inch opening size is matched to a 4-inch duct or wall or ceiling opening.

Technical specifications

14 specifications

Identity
Brand	PATIKIL
Model	pta250106tt001718
Size	4 Inch
Colour	Black
Material	ABS Plastic
Package quantity	1

Opening and installation
Opening diameter	100mm / 4 inch
Compatibility	Compatible for 4 inch duct or wall hole and the ceiling hole
Installation design	The reverse buckle mechanism simplifies the process of installing the gable vent. Just insert the soffit vent cover into the pre-drilled hole on the wall or ceiling, and twist it to lock it securely in place - no complicated tools are required.

Dimensions and installation
Dimensions listed	15 x 6.3 x 6.3 cm; 110 g
Weight listed	110 g

Airflow and use
Adjustment	The adjustable design enables you to manage the airflow by using the knob on the panel to adjust the size of the screen mesh vents, offering personalized comfort control.
Intended airflow	These multi-functional round attic vents can be utilized for both air intake and exhaust purposes, making them suitable for various indoor and outdoor settings including bedrooms, bathrooms, garages, chicken coops, and storage sheds.

Power and battery
Power configuration	no_plug

What to know before buying

Listing details to confirm

The listing describes the product as a soffit vent, ceiling vent and gable vent, and specifies a 100mm / 4 inch opening while listing overall dimensions separately. Confirm the required opening size and installation fit for your location before purchase. The listing recommends regular cleaning and keeping dust and debris from blocking the vent.

Who is it for?

A good fit for

Buyers fitting a round vent cover to a compatible 4-inch duct or pre-drilled wall or ceiling opening.
Those wanting a manually adjustable vent for intake or exhaust airflow in a listed indoor or outdoor setting.

Less suited to

Buyers needing a vent size other than the listed 4-inch opening.
Anyone seeking a powered vent or a device that changes airflow automatically.

PATIKIL 4-Inch Adjustable Round ABS Air Vent Cover · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 4 ratings

5 stars71%71%
4 stars0%0%
3 stars29%29%
2 stars0%0%
1 star0%0%

The available aggregate rating is based on only a few ratings and includes both five-star and three-star ratings. It offers limited evidence about customer experience and does not establish what buyers liked or disliked. For this product, check the stated opening size and manual knob adjustment against your installation needs.

Frequently asked questions

What size opening does this vent cover fit?

The listing gives an opening diameter of 100mm / 4 inch and says it is compatible with a 4-inch duct or wall or ceiling hole. Check the opening at your installation site before ordering.

Can the airflow be adjusted?

The listing says a knob changes the size of the screen-mesh vents to manage airflow.

How is it installed?

The described method is to insert it into a pre-drilled wall or ceiling hole and twist the reverse buckle to lock it in place.

Can it be used for intake and exhaust?

The listing describes it for both air intake and exhaust, and names bedrooms, bathrooms, garages, chicken coops and storage sheds among possible settings.