I have a 420 gph pond pump that I bought at Lowe's a few years ago. It comes with a shut off valve. It has been tested in a bucket of clean water, but never used in a pond. I won't be able to have a pond for the foreseeable future, so I'd like to see it go to another pond enthusiast. I have included pictures of a dent in the screen and a few small chips in the threads where the valve screws on. I did screw the valve on to the pump and felt no resistance. I don't believe either of those will affect the function of the pump. Free. I'm located in Bremerton, Wa. Pm me if you're interested.