They're like 30-40 bucks. It's def. not worth it. Just hit up your local head shop. Buttttt, if you can't then you can use other things. Both the wrench socket and the mouthpiece ideas are just alright but they don't have a "screen". Go out and buy a replacement faucet aerator from any hardware store for 78 cents.

:thumbsup: :jointsmile: