Filter Cartridge x 2 for a portable spa top load filters
The Top Load (100 sqft) Swim Spa Filter Cartridges
Water and an ample food source can cause microbes to quickly multiply and grow on an unprotected surface. Microban technology provides an added level of cleanliness protection by working continuously between cleanings to fight the growth of bacteria that can adversely affect the performance of your Spa cartridge.
Antimicrobial Protection lasts as long as the cartridge itself.