Review on 🚽 POWERTEC 70183 45 Degree Elbow, 4", Black - Durable and Efficient Plumbing Fitting by Tremain Lapan

So let me say that I have no idea what the manufacturer was actually intended for. All I know is that I needed a 4" "nominal" diameter object to connect a 1997 F250 7.3 liter air intake to a NAPA 6637 filter because I was too tight on the pressed the stock air intake box and broke the plastic (destroying everything. .gasket "which had to pass to prevent dust from entering the engine.) I first visited a hardware store and found some mediocre solutions using PVC fittings who could. Work. then I saw it. For less money this solves the problem by actually installing it (the truck fittings OD was about 4 1/4, the ID was about 3 7/8 - this is the same as the ID with a little force you can get with a 4- Inch hose clamp can clamp on both ends ). Again, I don't know what this thing was supposed to be before, but it does a great job as a cheap intake manifold for my truck :-)