Ivation Air Conditioner Support Bracket, No Tools or Drilling Required - Easy to Install Window AC Mount - Heavy Duty Steel, Holds Up to 200lbs - Fits Single Or Double Hung Windows 19.25H by 17.25L

Even though I have to return the support bracket I'm going to give it 5 stars. It seems very sturdy and well-built. It was easy to assemble, adjust, and install (though it was a bit rough on my fingers pressing those buttons in so many times). It fit my window well overall, but the design is not compatible with my window AC unit.My unit, like many, has the channels on its underside for the side fins' brackets to slide in, meaning my unit bottom isn't completely flat. If it were, I could see this bracket working as intended. As it is, the bracket would have had my unit be too far out my window or too far inside and tilted forward (instead of the desired slight tilt backwards). Plus there would have been tremendous gaps with the side fins to the window, due to the incompatibility of the bracket work my unit. It wasn't going to work.There are different designs of units out there, but I think the underside channels design is pretty common. I'm giving the bracket the benefit of the doubt and chalking the incompatibility up as a "me" problem rather than an outright problem with the bracket.

Very nice window air conditioner support bracket. Very strong construction.Assembly is very straightforward. The only challenge is aligning the support legs. Using a measuring tape speeds up the process. I recommend having a helper to hold the bracket in place but I did the installation by myself. The end result is a bracket that is strong enough to stand on (I weigh over 200 lbs.).When correctly installed with your air conditioner, this bracket allows for opening the window for fresh air and to use cooler air in the mornings.Tips:1. Measure the window. I installed this in a 36 inch wide window. That is the maximum width this bracket supports. The tray width is 16 inches wide by 18 inches deep. Center the air conditioner to maintain balance and to reduce vibration and noise. I attached a 1/8 inch rubber gasket (purchased separately) on the tray to reduce vibration.2. Double check your siding. Some of the weight is transferred to your siding via the legs. Your siding should not bend or break under weight (perhaps 1/3 of the air conditioner weight).3. 12-inch bubble level. The goal is a 5 degree slope downwards so that water does not come inside.4. Foam (2 inch by 2 inch by window length) to go between the window frame and the bracket, and between the bracket and the air conditioner. The goal is to insulate under and over the frame. I also used spray foam such as "GE Gaps & Cracks Insulating Foam" to create an air, water and bug proof installation all around the air conditioner. I added 1x2 foam on the window bottom to create an airtight installation with the operable part of the window so that I can open and close the window.In summary this bracket is high quality and will support small and big/heavy window air conditioners.

Very well built, easy to use. The only recommendation for additional safety was I added velcro tape to the bottom of AC unit as it slides very easily on metal to metal. Quality rpoduct more expensive than other choices however worth the price.

I really like this bracket over the one-leg one that I was previously using. This one feels way more sturdy and solid. I don't have to worry about whether my air conditioner is fully supported anymore. However, the design doesn't take into account the horizontal "fin" that a lot of air conditioners have underneath. The fin forms the base of the flexible accordion panels. The fin, when resting on this air conditioner bracket, creates a wide gap underneath the air conditioner. That means you need to get creative with how you are filling that gap. You would think that foam would be a no-brainer, but if you get heavy enough rain, that foam soaks up the rain and starts molding on you. I am experimenting with rubber tubing of various sizes to fill in the gap. I'm not sure whether it is feasible to design an air conditioner support bracket that can accommodate the fin, but whoever can do it would make a ton of money since it would be an improvement on this current design.

This AC bracket is exactly what I needed—strong, sturdy, and incredibly easy to assemble. It took just minutes to set up, and once installed, it held the unit securely with no wobble or stress on the window frame. The materials feel durable and built to last. Highly recommend for anyone looking for peace of mind and a quick install!

Excellent product, however I purchased it preemptively in case it would be needed for installation of my window unit. Was not needed so returned it. The AI probably says frequently returned due to the reason I'm returning mine. If you do need it, definitely a good buy even though it's a little pricey.

So easy to install! Sturdy and strong too!

If your AC does nit have a flat bottom this will be a problem- some units have metal “feet” that are made to set into a window track - this bracket takes that space up so the AC front will sit up and you also have a gap under it that needs to be sealed off. Nice and sturdy other wise . And the dimentions provided in the pics were off a bit.