You can all use a snap on cover but they are a pain in the a$$!! The screw on cover is the way to go. Here is a link to go to them:
http://store.yahoo.com/bestcontainer...-reusable.html
If you type in Gamma Seal in Yahoo search you will find some other sites that have them also. This is one of the cheaper sites, but there others that offer different colors.
Hybrid Mode
