The one I am getting is from the same manufacturer. Perhaps a tad smaller. In the air pump races on youtube, the
high volume ones did indeed fair better, you pays your money and you takes your choice. But this one indeed is quality.
Mine also has a flexible screw on hose...just the thing for old weak hands....
(Got my LEZYNE lite drive (Medium) pump today! Cylinder is about 3/4 in diameter and the pump is nine inches long. I took my NT
front tire down to 15 psi, screwed on that nice flexible ABS hose, and started pumping. I pumped for about 6 minutes and
700 plus strokes, switching hands once. After 700-800 strokes, the pump was still pretty easy to work but you knew the
resistance pressure had gone up for sure, so I took it off and measured the pressure. 28 psi. This tells me that if the front tire
had just been repaired and had no air in it, while the first 15 psi would have been the easiest, the second 15 psi wasnt that bad.
I am very impressed with the quality of this pump, and its fittings. Nomenclature and dimensions of the various Lezyne pumps are
ambiguous but if there really is a "large" size with a verifiable 1.5 in diameter barrel, I would go with that but for $25 I am not
complaining. Two thumbs up )