this is my second filter. i have the most terrible sulfur smell that comes from out well water. even with a house filtration system on it there is calcium build up on appliances due to it. these filters are the first thing i have found that fix it. Not only do they COMPLEATLY clear the smell, but it makes the water so much clearer and it tastes better than ANY water i can buy at the store. and the price is so much cheaper per year i almost feel like I'm stealing from them or something. 80-90$ for a 3 year filter. o yeah and the first filter lasted every bit of lifespan that it claimed to. thanks for this wonderful product it is saving my appliances and our quality of life! im a customer for life. i will be trying to save for a second system for other areas my home. hopefully one day the hole house! The picture is my first filter.