Depending on the make of the faucet, you should find two repair kits avalable, one for the anti-siphon, and another for the faucet internals. They are usually a few bucks per kit.

PW

: The anti-siphon device on my outside faucet broke this past winter. I really don't wish to replace the entire spicket (sp?)....just the anti-siphon part. Looks simple enough...screws right in. Can't find them anywhere. Don't wanna pay a plumber 50 bucks to do it either. Any ideas where to find one?