Geesatis 4 pcs Speaker Port Tubes 4.72″ x 2″ ABS Speaker Box Bass Air Port, Black

Pay attention to the diagram! I didn’t and I have to recalculate my port length and all again. I thought I was ordering 2” x 4” long port but it’s an 1/8” shy of two inches and 4.75”. Maybe not a big deal in my application but I’m trying to make sure everything is right for the enclosures I’m building as far as size, location and port type are concerned. Never really dealt with ports but they do feel pretty sturdy and look like they’re made well (other than what I mentioned). When I finish my enclosures I’ll update my review if needed. Since I screwed up and didn’t pay attention to the diagram I’m not docking anything. Just a heads up.Edit: Box is finished and installed and I’m going to make it 5 stars because I’m quite pleased. I didn’t change anything on the port or box, just decided to run with it and I’m pretty happy with it… sub isn’t even broke in yet, straight out of the box. Can only imagine what it’ll sound like in a couple months. As far as the port goes, there’s no port noise that I can tell so that’s about all I’m concerned with. I am using a Polk audio 10” sub in a rather large (per manufacturer recommendation) standard cab pickup style box. Not sure what hz I’m tuned to anymore but it sounds good.