I had no idea I was bathing in microscopic toxic waste & life-threatening micro-organisms, insecticides, highly corrosive & cancer casuing elements like chlorine & chloramine. I use this vita fresh shower filter with another one, making certain my water is clean! This product is easy to install & does it's job well!! Had water tested prior to & aft installation.. remarkable something so simple can do so much for shower water! Feeling healthier.. no more contaminants & deadly chemicals!