Yesterday we went to Lowes to get some stuff and I found some 2x3" PVC downspout.
Cut it to size and slit down the back with a knife. It pops right on.
Genova Plumbing, Vinyl Gutters,
This stuff might be pretty good for DIY outdoors line-set covers. (They have 3" x 4" sizes too).
Might save about 60% over the stuff I used on Sanyo #1. But, it would not look as neat.
My wife wanted the line-set going right into the wall, like Sanyo #1. But, that was impossible with this interior wall,
since there was no easy way to bring in down into the basement and then back outside.
Five 90deg bends = a longer line-set. Way too much work.