Help finding PVC fitting? Please.

I don't know much about PVC or fittings. But I am looking for a replacement for this exact fitting. 5.5" in diameter, white in color. Any help would be appreciated. Thanks!

http://ift.tt/1vr5dBH

Submitted November 28, 2014 at 09:47AM by LaterGatorPlayer http://ift.tt/1vr5aWu