hi guys,

i'm working on a big project now and to make a long story short: i need a small solenoid valve (electric valve) for gas/air use.
now i have found that those things are used on rc jets and they are perfect for me.
now i'm looking for the cheapest one available working on 5 or 6 volt.
it does not really need programming shizzle, it just has to be normally closed and when i put voltage on it it has to open.
where can i find them?

thanks,
Basch