Hello All: We are getting ready to purchase UV filters for our fluorescent bulbs and we're trying to decide whether to buy the rigid tubes or the sleeves. Does anyone has any opinions/sources on whether one is better than the other? The rigid tubes are much more expensive, but does that mean they are better and/or last longer? Thanks! Amanda Thompson Dyer Bell County Museum ========================================================= Important Subscriber Information: The Museum-L FAQ file is located at http://www.finalchapter.com/museum-l-faq/ . You may obtain detailed information about the listserv commands by sending a one line e-mail message to [log in to unmask] . The body of the message should read "help" (without the quotes). If you decide to leave Museum-L, please send a one line e-mail message to [log in to unmask] . The body of the message should read "Signoff Museum-L" (without the quotes).