ok dont get mad, this is only 4 days late.....i JUST set up my overflow and sump this wekend and by sunday i was already working on how to quiet down the overflow (amiracle if you havent guessed) well i bought it used and it works great, just noisy, so i dont know if it came with one originally, but i just cut a piece of plexiglass to fit over the top, and cut right around the U-tube, letting as little noise out as possible......quieted it down a lot. well thats what i did, i'm sure in combination with something else, that baby might be real quiet.