from the hobie forum.
http://www.hobiecat.com/forums/viewt...782&hilit=toro
"I am looking at going through the scupper holes on my PA. I was looking at the Lowrance scupper mount. Until I noticed that all it is is a modified sprinkler head. I had several extra Toro sprinkler heads in my garage and they are the same. Just a little modification. So before you spend $54 dollars on the the lowrance mount. take a look at the $1.50 sprinkler. Fits right in the scupper whole."