SPECSTAR Quiet Register Booster Fan 4'' x 10'' with Intelligent Thermostat 10-Speed Control, Heating Cooling AC Vent Booster Fan
SPECSTAR Quiet Register Booster Fan 4'' x 10'' with Intelligent Thermostat 10-Speed Control, Heating Cooling AC Vent Booster Fan
Hero image 0 of SPECSTAR Quiet Register Booster Fan 4'' x 10'' with Intelligent Thermostat 10-Speed Control, Heating Cooling AC Vent Booster Fan, 0 of 7

SPECSTAR Quiet Register Booster Fan 4'' x 10'' with Intelligent Thermostat 10-Speed Control, Heating Cooling AC Vent Booster Fan

Key item features

  • Effective Temperature Control: This SPECSTAR register fan boosts airflow to improve indoor temperature and circulation, maximizing heating or cooling with minimal energy.
  • Powerful Stator-Blade Fans: The fans push air through ductwork efficiently, even in high static pressure areas, with a 120 CFM airflow rating and noise level below 18dB.
  • Intelligent Programming: Features a programmable LCD controller and temp probe sensor to monitor room temperature and trigger the fan based on set cooling or heating temperatures.
  • 10-Speed Control: Offers 10 adjustable speed settings for customized airflow, ensuring maximum comfort and convenience with a 6.5W PWM-controlled motor.
  • Easy Installation: The premium alloy aluminum frame and ABS rear cover support ground and wall installation, with a compact design that fits standard 4'' x 10'' register holes.
  • Durable Construction: The thermoplastic housing protects the fans from clogging, ensuring durability and longevity.
  • Quiet Operation: Operates silently, allowing for a tranquil and restful night's sleep, with a noise level of less than 18dB.
Generated by AI
Price when purchased online
Not Available

How do you want your item?

How do you want your item?
Not available
Report an issue with this seller

About this item

Product details

Specifications

Warranty

Customer ratings & reviews

4.1 out of 5 stars
stars58 ratings27 reviews
How item rating is calculated

Customer photos

Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |

Showing 1-3 of 27 reviews

Dec 26, 2025
BlazingSun72
Item details
Size: 4" x 12"
Sold byVivo mallDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Operates as *I* intended

I'm using this a little outside of it's intended purpose but somewhat similar, my room gets significantly warmer than the rest of the house from tech and pets and myself all being higher than normal heat generators, so I wanted to draw in the winter air but be able to control said intake remotely. The louvers close when you turn the unit off and the fans are a perfect noise level at speed "5" to PUT me to sleep, it's noticable when turned up higher but if left on overnight with 40°f outside air I'll wake up with it 60 or lower in my room, whereas if I fell asleep with the PC running a game I could wake up with it as high as 80 and a big headache on top. I might NEED to get another to pull more ac in during the summer unless I got lucky with the size and it happens to match my register. I haven't messed with the temperature modes because right now all I need is on and off and maybe to tweak the speed but it's perfect for my goofy usage

Helpful?3QGDB1F5HFUA5473123366
Jan 26, 2026
robert
Item details
Size: 4" x 10"-Gray
Sold byVivo mallDelivered byWalmart
5 out of 5 stars review

Verified Purchase

I have 16 x 30‘ room heating system was not enough with the doc work order. The three of them saw them in the doc work amazing what a difference raise the room temperature by at least 15° now it's comfortable in this room. I was very skeptical about it, but they work wonderfully highly recommend them.

Helpful?3QGDB1F5HFUA5473123366
Jun 6, 2026
Cooper
Top Reviewer
Item details
Size: 4" x 10"-Gray
Sold byVivo mallDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Very necessary for weak HVAC airflow in old houses

These will help your cooling system get air upstairs, or down, wherever you have a weak vent. Unfortunately, I have an old home and am all too familiar with these. I've been experimenting because I have 2" x 10" and 12" openings on many upstairs vents, which doesn't help. I have floor vents for most of them too so these do not natively fit. Instead I actually use the inner box the unit sits in, cut the bottom out, and use it as an adapter, works great. For the fan itself - 10 speeds, and it gets both more wind blowing from it and louder as it goes. We have large spaces to fill with high ceilings, so really without being at fan speed 5, it's not going to change what I have going on, but your mileage may vary depending on your particular situation. Real simple to use, left button selects the mode (cool, heat, fan speed) and the up and down lets you set the temperature to turn on and off. that's it. it'll save that info during a power outage. i set mine about 68 for AC and 78 for heat and that seems to work great, the HVAC blows AC at about 50 and the heat about 90 so i have the fan overlapping what the system actually does, there again, you need to watch it at your install to see what temps it sees and adjust a little until you get it set where you like it. These work well, there is another "floor style" that is actually single fan and more powerful, but they're over double the price of this unit. I am getting 75 to 80% of the performance for 50% of the price, I chose this. 2 of them actually.

Helpful?3QGDB1F5HFUA5473123366