ToughGrade Horizontal Sliding Black RV Window 24" X 15" X 1 1/2" Includes Mounting Ring and Screen

Install on this window takes some planning, and some time, but is not that hard with 2 people. Gently take the screws out of the old window frame on the inside of your camper and set them aside, you will need them. I believe the reason they don't include them is they could be too long and pierce the new window frame on the outside of the window, you are better off using the ones from the existing window. On my 2021 Keystone, the walls were thicker and I had to reuse the inside trim piece as the one that came with the window was not thick enough for my walls. Pushing the old window out takes some time and gentle prying, so you don’t bend the siding all up.Clean up around the window hole with what ever the gentlest solvent you can use, you can use a rag and rub most of the gum paste sealant off, be careful of the edges of the siding, on the aluminum ones they are sharp. Dry fit the new window gently with NO sealant on it first, to check the fit, if too tight you may need to sand a little around the window hole on the camper to fit. Now you need to predrill the holes for the screws. Lay the new window flat on something soft to not mar the face up. Looking at the inside that will be closest to the inside you will see a small “V” channel, that is where the screws will drive through, and this will need to be predrilled. Holding the inside window frame firmly against the outside window, take a small drill bit and gently “mark” in the window frame where each screw will go, then go back and drill them through. I used an 1/8-inch bit and it worked fine. Be careful if using a power drive drill, so you don't rip the screw holes out. Install all of them, then go back with a square bit hand screwdriver and finish them up.On install I put mine window half to the front, screen half to the rear, that way going down the road if it is raining the water isn’t pounding against that seam.Now, after you are comfortable with the fit, and the screw install, it is time for sealant. I used both tape and ProFlex sealant. DO NOT use silicone or RTV, they are not made for this. Because of the “ridges and valleys” in my siding I cut 1.5-inch long pieces of the gum tape and put them in the valleys, rubbing the ends to make them flatter as they went up to the ridge on the siding. Then I put a bead of ProFlex around the entire window frame flange and stuck the window in place, installed all screws and wiped the excess caulk around the frame. Look around the window on the outside and make sure there is sealant in all gaps between the window and the siding, especially along the top edge.Last of all, pry the rubber plugs out of the weep holes on the bottom of the window.We'll see if it leaks, that is why I didn't just 5 star it all.

The slide for the window leaks... if you dont open the weep holes. so just make sure that you remove the weep hole covers it makes it so the water can drain out. the main problem I had was that it doesn't come with a piece of paper that has the exact size of the hole traced onto to cut out and trace onto my wall. its a tiny thing that would highly increase the quality of my purchase. instead I had to make one out of cardboard and constantly trim it down to try and account for the angle.

I contacted them and they said, no screws included go buy your own black screws. Cheap way to make a few cents. They were in the past. Why no now?

I purchased a different size from the same manufacturer of this window for my enclosed trailer, was so happy with the quality I purchased this one. I again was not disappointed.

Windows leak around slider portion!

Horrible window. I cut into a $60k van for a leaky window. I bought 3 of these things and each one I tested (the first being the one I installed into the van) leaked. Water just runs from the tracks to the other side with absolutely no resistance.