That's helpful info. Maybe the other guys who seem to know could answer again given that clarification of your query. For example, my Windjammer came with an inline house water filter cannister installed, but the actual filter itself (replaceable cartridge) was not installed and came in a box found in a bathroom cabinet. So the answer with respect to my TT would be yes, and no, depending on interpretation.
2013 Windjammer 3008W
2006 Chevy Silverado 2500HD 6.0L w/Equalizer 4
Nights camped: 2012 (29); 2013 (26); 2014 (40); 2015 (43); 2016 (35)