What is this low-voltage wall transition from inside to outside called

[penright]

I have a sprinkler controller on my garage wall with a piece of small conduit hiding the wire. The wire goes through the wall to the outside, and another conduit down that wall. There is this "mystery" fitting that caps it off, and on the outside also keeps water from going down it. I also added my low-voltage lights to it, and it is pretty cramped. I wanted to go larger pipe, but can not find where they are. I would think I could find it on sprinkler websites, but not yet. I am hoping a trade name would help. Most of my searches just show me electrical conduit fittings. What makes it desirable over, say, a 90 is that you don't have to drill a big hole, and it hides the hole itself.

Here is the inside and outside of what I am talking about.

 

[CJ7VFR]

If you look up the patent number you will find that these are called: Conduit wall interface with sealant port.

I looked that name up and there were a lot of links to forum websites about this piece and it seems it was used almost exclusively for sprinkler systems, which is what you said this thing was used for at your house.

I could not find anywhere that sells them, but I only searched for a few minutes. It does appear that the guy who created this part and patented it did so in order to sell them as a way to get sprinkler system wiring thru exterior walls of houses without having to drill the larger diameter holes that most LB conduit body ports require.

If you can't find your mystery part for sale anywhere you may have to go with a standard LB and drill out the hole if are looking to add more wires thru the same place.

Jim