Definitely not what the manufacturer says! These filters don't last 15,000-17,000 gallons! My first filter, which was rated at 15,000 gallons, could pass 1000 gallons but still lasted about 8 months before I saw any significant loss of water pressure in the filter system. Not sure why the manufacturer gave them a high gallon warranty rating when they can't last nearly as long! Definitely feel left out on my overall purchase with the product! I will contact the manufacturer about the product and my frustration!
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