I’ve had one of these for a while and I think they’re great. Who wants to douse their hair and body with chlorine every time they shower? It’s very drying for your skin and your hair. The filter assembly is pictured left and the replacement cartridges are on the right. The assembly comes in white, chrome, or gold and the filter inside is supposed to last a year — you reverse it after 6 months. You simply install it before your current shower head. I suggest you use Teflon tape on the threads. After 6 months you screw it open … Read more…