NDS 78A* 4-Inch Round Atrium Drain Grate Cover for 4-Inch Sewer and Drain Pipe Fittings, for Small Lawns, Landscaping and Patios, Black

I used this on my 4" pvc chicken feeder to keep birds from getting in. It still allows me to fill the pvc, without letting large animals in.

Came right away. Good quality and durable

Fits like it should. Keeps things out off my mechanical system discharge.

These are OK but usually this grates have little bumps that allow them to snap into the corrugated pipe. These just slide in...and back out again. they have nothing to retain them.

. Well, it was not the exact size I needed however, all I had to do was turn it upside down and it worked just as well. Good enough for that’ll do for now sort of jobs, or if you’re not sure what size to get :-)

The trick to get an accurate measurement is to measure the drain and not the flat cover that was covering the drain. It sounds simple unless someone clueless is doing the measurements. 4" is a pretty standard drain opening. It fits right in and should prevent future flooding because the top of the drain got clogged with large leaves. I wish this was manufactured in a florescent bright color to prevent someone forgetting it's there and trip over it in the dark. I plan to paint it.

Just what I was looking for there were originally mesh screens on the pipe that runs to my culverts at the road but the mesh screen kept getting stopped up during heavy rains because all the fine debris clogged up the screens. Just installed them today and I think they will work better.

Bought 2 of these to keep snakes out of my gutter drains. The only drawback is that while they keep the snakes out, they are clogged with leaves after 3-4 good rains. I tried using duct tape at first to keep the water pressure from pushing them out of the drain. Not a good fix when they have to be cleaned out. My solution was to run a small screw through this cap into the plastic drain pipe and it holds well, is easy to remove to clean out.