Great Barrier Snap-On Filter (4" Lip Diameter, Not for Tubs purchased after May 2009)Evergreen Softub
Upgrade Your Spa Filter! High temperatures and the wet environment make the filter surface a target for bacteria. Great Barrier filters are made with Reemay® Liberty™ with Microban®. Microban antimicrobial protection inhibits the growth of bacteria that can cause stains, odors and degradation of the filter surface. The continuous cleaning action of Microban makes the filter easier to clean, and fresher between cleanings.