I was a skilled worker and have worked on a construction site in the past so I know for sure it was installed correctly. The dueling filter worked great for a few months. This morning (10/8/2018) I woke up to a half inch of water in my garage where the filter was installed. The side of the hull turned out to be split, resulting in catastrophic destruction! The case was not overtightened as I only hand tightened the case. Buyers beware of this cheap, poor quality product and spend more for peace of mind! I was lucky this happened in the garage and not in my attic where I originally intended to install it!
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