<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">Jon, I have not used the AirPux but considered it. They still lift the scenery while the ones I have just lock the rotation and rolling of the caster that I find to be much smoother in operation. For more capacity, I just used more casters. I don’t think the Spoon Group casters were much shallower but I could attach them to a 2x4 framed platform with a 3/4” deck and was just under 8” total height. Since we tried to use 8” rise on all of our scenic stairs it worked well for us. <div><br></div><div>Greg Bierly</div><div><div><br><blockquote type="cite"><div>On Aug 6, 2024, at 11:25 AM, Jon Ares via Stagecraft <stagecraft@theatrical.net> wrote:</div><br class="Apple-interchange-newline"><div><meta charset="UTF-8"><div style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 24px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;">AirPux <a href="https://afx.bz/airpux-2/">https://afx.bz/airpux-2/</a><span class="Apple-converted-space"> </span>also makes triple swivel lifts, as well as friction brake versions. Anyone use those? I haven't inquired for price, but I'm sure it's not cheap. But I love the self-contained system.</div><br class="Apple-interchange-newline"></div></blockquote></div><br></div></body></html>