Suncourt Register Booster Fan & Reviews

Register Booster Fan, Brown, 4.5" H x 18.25" x 8"

Not pictured: 4.5" H x 18.25" x 8"

Customer Reviews

Rated 4.1 out of 5 stars.

39 Reviews

Showing 1-5 of 39 reviews

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Rated 1 out of 5 stars.

GaryFredericksburg, VA

Not even close to the size it advertises. Returned and got charged $9 to ship it back. Do not buy unless you need the size in my pics.

Aug. 10, 2026

Rated 5 out of 5 stars.

Anonymous

These fans are amazing. The boost the airflow in our house exponentially. They fit perfectly into our vent holes and are easy to use.

Jan. 08, 2026

Rated 4 out of 5 stars.

PatriciaRockville, MD

Finish:White,

Size:2.25" H x 13.75" W x 6"

Works pretty well and has kept the room reasonably cooler.

Jul. 30, 2025

Rated 5 out of 5 stars.

WilliamBechtelsville, PA

Finish:White,

Size:4.5" H x 18.25" x 8"

Perfect to move the hot air flow from the wood stove down stairs up to the next floor

Jan. 13, 2025

Rated 4 out of 5 stars.

MichaelIndiana

Finish:Brown,

Size:2.25" H x 13.75" W x 6"

Runs very quietly, check your measurements as it is larger than described. I am pleased with the overall quality.

Dec. 26, 2024

At a Glance

General Features: Quiet Operation

Built-In Features: Automatic Shutoff

Number of Fan Speeds: 5

Power Source: Plug-in

Finish:

Brown

Size:

4.5" H x 18.25" x 8"

About This Product

The Suncourt Flush Fit Smart Register Booster quietly boosts heated or cooled air to a room to improve circulation and comfort. This register booster features a built-in temperature sensor and works automatically with forced air systems. The Flush Fit Smart Register Booster's quiet 5-speed; dual fans pull extra air out of weak registers, boosting airflow by up to 85%. It is a simple, energy efficient and safe solution for rooms that are too hot or too cold.

Features

NEW patent pending self-learning technology turns the register booster on and off with your heating and air conditioning system. No programming necessary!
Set-Up in seconds: plug-in, set on register and go
No seasonal temperature settings necessary
5 fan speed settings, up to 132 CFM, for maximum control and comfort
The HC500-W and HC500-B fit in a standard 4 in. by 10 in. register. For registers sized 6 x 10 in., 6 x 12 in. and 4 x 12 in, you can purchase the HC500-WPL or HC500-BPL which includes an adaptor plate.
Can be installed in floor or wall registers. Installing in a ceiling register is not recommended.
Fits flush with the floor or wall for a clean contemporary look
Low voltage, safe for children and pets
Assembled in the USA