Would like one more plastic sleeve
The previous reviewer was quite helpful. As was stated, this part includes the tube, yellow flow reducer, water solenoid inlet brass nut, inlet strainer, and one white plastic sleeve. Evidently, they want you to reuse the water solenoid outlet brass nut and plastic sleeve. OK on the brass nut, but I prefer to have a new sleeve. This is a hardware store item. Reusing the old sleeve is probably OK, too. As an installation tip, soak the tubing in a bucket of hot water first to make it more pliable.
Feed Tube feedback
Glad I was able to easily find this online direct from Aprilaire. Note that the Yellow Orifice (4231) and the In Line Strainer (4004) are ALSO included. It would have been nice to know this BEFORE I purchased these parts separately when purchasing the Feed Tube (4266). Guess I'll keep the extra parts for preventative maintenance in the future (lofty ambition).