Jim,
Gotta agree with Hal on this one, I just replaced my entire raw water system with a Perko like the one pictured, all new bronze fittings, new reinforced hose and double hose clamps for about $170 purchased at a local chandlery. Considering I leave my engine intake throughull open when I'm away during the week I sleep much better knowing something stronger than plastic parts are keeping my boat afloat.
Just my .02
Michael