Tamarack TTi-RAPR12.6 RAPR 12" X 6" Wall Return Air Pathway - Retro Fit white

Follow the instructions, easy install, helps the return air when you have a bedroom door closed. Worked so well that we bought a second one. A little pricy but you get what you pay for.

I just had a new HVAC unit installed and when I was talking to the rep from the company that installed it, I told him that certain rooms were colder/hotter than others. I had attributed it to incorrect installation of the original unit, but he told me that the rooms were not getting good circulation because we all sleep with the doors closed, preventing air in the room from being returned. I have no idea how to install a jump vent so this item was perfect. It's very simple to install. Stud finder, drywall saw, drill and you're good. Each one took maybe 15-min to install using only the video on the product's page for a guide.I ordered a total of three of these. When I received them, one of the grills was scratched on one side. I contacted the company and they sent me a replacement with no fuss. I would give the product four stars, only because I would like to see a pre-drilled holes for the screws, but the company's quick turn around a customer service focus changes that to 5-star for me. This item does exactly what it says it will do. My room temperatures are now balanced with almost no noticeable light bleed (there's more light coming in around the door than through the vent) and very minimal sound bleed.

I have three bedrooms and a bathroom in a square shaped upper floor. The far bedrooms have two supply registers and no return. They were always 1-2 degrees off of the rest of the house. I installed a pass through from 1 br to another that only has one supply but has a return and it is working great. The passthrough seems to be providing more air than that room's own register. Thinking of adding one to my other br but it has the door open most of the time. Only disadvantage is that some noise can now pass from room to room but its minimal.

I think it's a great product. Made an easy solution easy to install. I live in south Florida in a house built in 1964 so no returns in the rooms. Added these to my kids room and I was surprised at the amount of air coming out of the 12x12, you would think I plugged a fan in. I removed the cardboard because it didn't help at all with sound and was more of a restriction then anything. There was a noticeable difference in sound after install. I taped where the two pieces meet and sealed around the cuts so I don't get any air from inside my walls or lose any conditioned air into my walls.

I am very happy with the performance of this return air pathway (or transfer grille). I need a lot of darkness and quiet when I sleep so I sleep in my walk-in closet. It has a small A/C vent but the room was always extremely stuffy and hot when I slept there because there was no way for the air to exit. I installed the smallest one of these and now suddenly the room is never stuffy. It's a much healthier and more pleasant place to be (and to sleep). This product has made a big difference in my life. Even though it is very small, it apparently lets through enough air that it dramatically changes the temperature/humidity/smell/stuffiness of the room. Very good.How about the noise and light transmission? I was quite worried about this because that's the reason I sleep in the dang closet. The light transmission is almost none. If I turn the light off in that room and bright lights in the room on the other side, after my eyes have adjusted I can just see a tiny bit of light coming through. Compared to the light that comes around the edges of the closed door it is extremely small. I'd say the door edges transmit about 20 times as much light. So yeah, very little light transmission.As far as noise is concerned, it's hard to measure. I can hear people on the other side of the wall, but I could before as well. I *think* it's a little clearer now, but not by a ton. My perception is that it doesn't make a lot of difference in the noise transmission. Notice that I have the little one installed (12x4), which I think is part of the reason not much noise comes through. I also have this installed at the very top of the room in the far corner. If this was a 12x12 over a door, I think a lot more noise would come through.So now, how about the construction? As I think other reviewers have pointed out, metal lip that goes on the outside of the wall is large enough that it goes past where the screws for the grille need to be screwed in. But there are no holes in it. So you must use a drill to put a hole in the metal. That's a minor annoyance. Also, my cardboard had some damage in it. This seems to be an extremely common problem. It actually doesn't look like this is shipping damage. I think it came from the factory this way. At the end of the day, this is behind a grille so you don't see it, but I think you pretty much need to expect it. Actually, the cardboard seems adhered to the inside of the insert. I'm not sure if there is glue in there or just friction, but you can't get the cardboard out.Overall this is pretty cheap construction (thin metal without a ton of attention to detail) but it works. And since it goes inside the wall, the little fit and finish details don't matter much.