High Output Model HOC 1 Year Replacement Cartridge
This Sprite High-Output Filter Cartridge is a reversible 1-year filter cartridge. Its unique Chlorgon and KDF filtration media means it will filter out total chlorine - both free and combined - providing for enhanced chlorine removal protection.
It can easily be reversed and operated in either direction. Periodic reversing of the filter cartridge not only eliminates channeling (ensuring balanced filtration) but also back-flushes the filter.
Sprite products are NSF Certified to standard #177 for shower filtration. Don't be misled by companies who claim NSF Certified Filtration Media. It's not the same as being certified to Standard 177!