Just removed my 2801's water filter for the first time as part of winterization. On the end that goes up into the filter housing, the mouth and seal look deformed. It is like it wasn't centered and they jammed the housing on anyway.
The plot thickens...the blue filter housing is marked part number "KW1" but the canister filter housing says it takes a CC1-10-C filter (which looks totally different at the top). Soooo...it is not even the right filter. Yep, either the factory or dealer installed the wrong filter.
Sad to say, but I am not at all surprised. Way to go, guys.