SAW filters can be a great way to get precise filtering done at reasonable cost ( $1.0 – $2.00 for 915 Mhz, 26 Mhz B.W. filter). However, they do need to be handled with respect as they are ESD sensitive devices. A good app note can be found at http://www.mouser.com/pdfdocs/ESDProtectionforSAWFilters.pdf for interested parties. Check out our website for more info and our services.