The only reason I give this star is because I don't know if it works: My plumber came to install the filter this morning but found that the connectors to attach the filter were missing. do not approach the water supply with it. When I called 3M they told me they don't include them as they don't know what size they need. Since the size is US standard, I think this is a pretty lame answer. Now I have to wait a few more days for my plumber to pick up the parts I need from the plumbing store. What he told me would cost more than if 3M included him in the filter.
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