petcocks? adapter plates?

I'm looking for an aftermarket petcock, and all I can find are pingel. Anyone know where to get anything cheaper? I'd like to get a two piece design so i can use the plate to block off the tank for cleaning.
Thanks a ton.

never mind my error

Z1 Enterprises has the plate which is a Pingel and also a cheaper manual petcock, Bikers Choice or some such. I've got three of the sets and they've all worked out fine.

My bike already had a pingel on it when i bought it few years ago. I really like it alot. I had to rebuild it last winter and i went to buy rebuild kits and they are expensive but you get enough for three rebuilds. Cant buy single rebuild kits. But easy to rebuild. But ya they aint that cheap for everything.