Intelifil (IF-SM-CC010B) 10"X4.5" Full Flow Calcite Low pH Acid Neutralizing Filter

**Warning** After installing this on my well system, I started to get very itchy and started to break out in rashes all over my body. I went to the Hospital at 2am in the morning (that is how bad it got) Got started on IV pumped me up with steroids and benedral and within an hour the rash was gone. 2 Days later i break out again. For the life of me I tried to remember what I have done different in my routine (which was nothing but install this filter) so I disscontinued using this filter and low and behold the rashes and itch went away. So there must be something in this filter that should not be in here that I am alergic to. It is up to you to take this chance.UPDATE 11/13/17, Seller refunded my money without question without returning filter. I will purchase other products from seller when needed, not their fault with faulty product.