Diversitech230-WS2 SpeediChannel Wall Sleeve for Air Conditioning Systems, Mini Split Line Set Cover, Universal Installation, 2.5", Natural

I could not find anything like this locally but this worked perfect for my senville 9k btu unit which uses a 2.5 inch hole.I cut to length stuck it in the whole and screwed it in no problems. Much more solid than the 2 piece cheap one that came with my unit.Wish these were cheaper but I’m satisfied that I got what I needed

It’s still new

Turns out I needed a 3" diameter sleeve per Mitsubishi specs. I didn't want to chance going narrower. I wish this came in different sizes.

overpriced for a plastic tube with a flange, but it does the job

Did a good job and the cut to length made it nice to install

I read so many negative reviews so was upset when I HAD to purchase one and then realized how nice, sturdy and lenghty these were. I was installing my last mini-split unit and the ones that the company supplied were so cheap and short. On two of my units I had to combine part of another and tape together just to make it the length I needed. When this one was delivered I was so upset and wished I had just ordered all four of them smh. Although it's only 2-1/2",it was sufficient room for both my 9BTU and 12BTU units (can't comment on any larger units as the linesets may be larger). It was also better than the 3" one that was supplied with my MrCool unit, I had to end up using 3" pvc pipe since that one arrived in pieces. For clarification I have a 12BTU unit by MrCool and a 4-unit 36k system by Senville.I would definitely recommend!

This is perfect for thick concrete basement walls going into a refular stud wall. Was plenty long enough. Provides nice smooth channel to pass pipes and wires through.

Tube is too narrow to safely contain all lines from mini split