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Model # HC300

Internet # 100031683

Store SKU # 423430

Equalizer EQ2 Heating and Air Conditioning Register Booster

This item has been discontinued.
The Home Depot no longer carries this specific product.

$37.58 /each




Model # HC300

Internet # 100031683

Store SKU # 423430

Store SO SKU # 655047

The Equalizer EQ2 Heating and Air Conditioning Register Booster helps boost up to 80% of air that has been heated or cooled from under-performing registers in your home. This register booster features a built-in temperature sensor. The booster is made of high-impact, ABS-polycarbonate with a flame-retardant housing. This register booster is an energy efficient way to improve circulation and comfort in your home.

  • Made of high-impact ABS-polycarbonate
  • Helps boost heated or cooled air in rooms to improve circulation and comfort
  • Boosts up to 80% more air from under-performing registers
  • A simple, energy-efficient and safe solution for rooms that are too hot or cold
  • 3 adjustable controls include operation, set point and sensitivity
  • Built-in temperature sensor with automatic operation
  • Flame retardant housing
  • Place-and-plug convenience
  • Sones = 2.2 dBA = 50
  • Tested to UL standard 507 and CSA 22.2
  • ETL (C/US) listed
  • Note: Product may vary by store.
  • Home Depot Protection Plan:

    Home Depot Protection Plan

Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Brand/Model Compatibility 
Equalizer EQ2 Register Booster 
HVAC application 
All HVAC types 
Product Weight (lb.) 
2.25 lb 
Warranty / Certifications
Manufacturer Warranty 
1 year limited 


Rated 3.6 out of 5 by 64 reviewers.
Rated 1.0 out of 5.0 by Great idea, poor functionality I purchased this to use in my upstairs bedroom that tends to stay a little warmer than I would like. Because of how my registers are angled, it would not fit into the hole, however that is not why I consider this to be a horrible waste of money. I plugged it in and held it over my vent while my ac was running. Without actually having a meter to measure the cfm's coming out of the unit, I can't prove it, but I think there was actually less air coming out with the booster over the vent than with the vent by itself. The noise that it puts out is not horrible, but since it didn't seem to put out any air to accompany the noise, I chose to return the unit. July 31, 2014
Rated 1.0 out of 5.0 by Too Noisy doesn't deliver When I bought it I thought the air was going to flow cooler and faster. None of this.. It makes a lot of noise and it really doesn't deliver.. Don't buy it August 25, 2015
Rated 2.0 out of 5.0 by So So The product is extremely bulky and has to be plugged in, making it difficult and not very stylish...especially when being put over a ceiling register. The fan is not very powerful, so when the air is on, though there is some noticeable difference it is not much. I should have just bought the portable air conditioner and been done with it. Don't waste your money. July 29, 2014
Rated 3.0 out of 5.0 by Great while it lasts They work great, but die quickly. We have bought at least 8 or 10 of them for our large, poorly HVAC'd home. It takes a few moments to adjust them for heat vs. A/C, and they work great. I'd guess the average life span is about 3 months. We also noticed, one died immediately upon being lightly bumped by the hamper being replaced. There is some overly-delicate circuitry inside that I would assume leads to their quick demises. I assume if manufacturer spent a few more pennies on the boards, they would be a 5-star item. April 24, 2012
Rated 4.0 out of 5.0 by great energy saver I have a long house and the ac doesn't really get to the back rooms and the front rooms are cold, so I got this. It is great it pulls the air into those rooms that need it and the ac doesn't work as hard. The only drawback is that it is about 2" high so it has to be on a vent where there is little traffic so no one trips. May 28, 2006
Rated 1.0 out of 5.0 by Useless The idea behind the product makes sense: this is a fan designed to draw the air from the vent duct into the room, presumably because the A/C blower isn't forcing enough air into room to keep it cool or warm. Unfortunately, it doesn't work. It's a fan and it blows some air, but there's no seal around the vent to pull the air from the A/C system. Basically, it's just recirculating the air near the floor, not from the A/C system. So, it's useless. And it's loud, really loud. September 2, 2014
Rated 5.0 out of 5.0 by It works! I have a guest bedroom on the second floor that stays at 76 degree's, The lone register just can't keep it cool. With guests coming, i bought this and it cooled the room down to 72. Forget the negative reviews. Its not near as loud as a floor or window fan, and the trade off is a cooler room. June 15, 2015
Rated 1.0 out of 5.0 by Sounds like a helicopter Horrible. Unbalanced fan blades cause vibrations that could be heard on the floor below. I thought there was a distant helicopter hovering, but after some time I finally realized it was this fan vibrating the vents. Air output was very low. March 10, 2015
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