Gary Russell advertises this SWA Konig in a 2" barrel for $60. IF you ask, he also has the same lens/housing as the 2" in 1.25" with NO FOV loss unless you have a long 1.25" drawtube.
I bought this eyepiece in 1.25" 3 weeks ago to test in a new f/6 scope I just finished last week. I also have a 20mm Ultrascopic Plossl to compare.
MINE IS 1.25", NOT THE 2.0".
The view in the Konig was great for the wide field and, very good on sharpness, but not as sharp as the Ultrascopic. That makes sense given the 52* Ultrascopic vs. the 67* on the Konig.
Since I don't need a 19mm and a 20mm, I am selling the 1.25" Konig for $40.00 including Priority Mail insused in CONUS.
Might consider a trade for a 24mm to 26mm Plossl, or a 5mm Lanthnum (not the SWA) + I pay cash for the difference considering both not "new". I would also like a 1.25" single-beam laser collimator. Email (or call) with what you might have for trade or just $40 to buy it.