Most Popular Redline for 2018 Ram ProMaster 3500

No complaints. No leaks. Seem to work great.

Excellent product and easy to work with. Great service. I was concerned however about insects entering through the vents so came up with a filtration system. Used a PVC coupling and some filter material. Cut the coupling to 1/2 inch rings and remove just enough material to allow an inside press fit. Cut round filter and insert first then hold in place with the ring. On the outside vent cut a long narrow piece as shown. When installed as shown, adds very good double filter and allows air to move freely. Just finished a 6000 mile trip clear across the country and back and filter performed perfectly. Eliminating the heat build up AND keeping the bugs out. JIM : ]

Very well made item But very hard to open and close.

Added this to my travel van roof,love it! Gonna add more to my cargo van's side walls because I didn't want windows, but need heat release and a way to peek outside safely when needed. These are perfect and the raised vent helps keep the rain out. A bit hard to open, but that's proven to be a good thing; much easier to close. The holes are safer/stronger than a mesh opening. These are perfect for my use!

I just put them in my van and like how they turned out and think they will do what I was thinking

Installed on a SxS utv roof for ventilation on warmer days. It gives a much more comfortable ride. Very glad I took the time to install it.