MATULSA KE01 Register Booster Fan, 4 x 12 in

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Product guide

MATULSA KE01 Register Booster Fan, 4 x 12 in

The MATULSA KE01 register booster fan is designed for 4 x 12-inch register openings and adds remote control, a thermal probe and ten speed settings. Its thermostat modes are described as responding to hot or cold airflow thresholds, so it suits rooms where airflow from an existing vent needs a boost rather than standalone room ventilation.

At a glance

Ten speed settings and push-button or remote control are listed.
The product description gives a vent-opening fit range of 11.65–12 inches long and 3.93–4.5 inches wide. Measure the opening, not just the register cover.
The temperature probe is described as triggering operation at configured hot or cold airflow thresholds.

Price

$42.49Save 15%

Reference price: ~~$49.99~~

Price checked: Nov 14, 2026

View offer Ahead of Black FridayExplore the selection

Often bought together

MATULSA Register Booster Fan for 4" x 12" Register Holes with Remote Control and Thermostat, 10-Speed Floor Vent Fans Booster - Enhances AC Heating&Cooling Airflow, Quiet Air Duct Fan for Wall, Bronze

$44.99

Pros and cons

Pros

Remote operation and ten listed speeds offer multiple control options.
Hot- and cold-triggered operation is described for heating and cooling airflow.
The stated opening range helps buyers compare the product with a measured register opening.

Cons

No airflow rating or noise figure is supplied, so airflow capacity and sound level cannot be compared from the listing details.

Technical specifications

14 specifications

Identity
Brand	MATULSA
Model	KE01
Size	4 in x 12 in
Color	White

Controls and operation
Control methods listed	Push Button, Remote
Number of speeds	10
Voltage	120 volts
Indoor or outdoor use	Indoor
Fan design	Exhaust Fan
Power source	ac

Dimensions and installation
Mounting types listed	Floor Mount & Wall Mount & Ceiling Mount
Dimensions listed	1"D x 1"W x 1"H

Listed features and use
Special features	Remote Controlled, 10-Speeds, Boosted Airflow, Energy Savings, Thermal Probe, Easy Installation
Recommended use	Air Circulation

What to know before buying

Listing details to confirm

The listing is inconsistent about dimensions: the product is presented as 4 in x 12 in and the feature text gives a fitting range of 11.65–12 inches by 3.93–4.5 inches, while the separate product-dimensions field says 1"D x 1"W x 1"H. Confirm the actual opening fit and physical dimensions before purchase. The description also calls it a register booster for floor and wall vents, while mounting details additionally list ceiling mounting, which is not explained.

What’s in the box

Included

Register booster fan (1)
Installation kit (1)
Remote control (1)
User manual

Who is it for?

A good fit for

People looking to boost airflow through a compatible 4 x 12-inch floor or wall register.
Buyers who want remote control and temperature-triggered operation for a room affected by uneven heating or cooling.

Less suited to

People who need a specified airflow capacity or sound rating before choosing a fan.
Buyers whose register opening falls outside the stated fit range.

MATULSA KE01 Register Booster Fan, 4 x 12 in · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.1 / 5 · 215 ratings

5 stars63%63%
4 stars13%13%
3 stars8%8%
2 stars8%8%
1 star8%8%

Customer feedback reports positive experiences with cooling performance, airflow and installation, including mentions of improved comfort in upstairs bedrooms. Those reports are relevant to the stated role of boosting air from a register, but do not establish a particular airflow output. Noise and perceived value are mixed, so buyers sensitive to sound or comparing cost should weigh those concerns alongside the lack of a listed noise rating.

Positive themes

Customers report positive cooling and airflow experiences.
Customers appreciate installation and fit.

Mixed feedback

Noise opinions vary, with some describing it as quiet and others finding it loud.
Perceived value for money is mixed.

Frequently asked questions

What register opening does the listing say this fan fits?

It is presented as a 4 in x 12 in model, and the feature text specifies openings 11.65–12 inches long and 3.93–4.5 inches wide. Measure the duct opening and note the conflicting 1-inch dimensions field before ordering.

Can it respond automatically to heating and cooling airflow?

The product description says the probe can trigger the fan when airflow meets or crosses a configured hot or cold temperature threshold. The listing does not specify the threshold range.

What controls are listed?

Push-button and remote controls are listed, along with ten speeds.

What is stated to come in the package?

The manufacturer contents list names one register booster fan, one installation kit, one remote control and one user manual.