I made my own
. This is Version 2.0 that I clearly cobbled together.
To deflate, I hook up all for tires, then use the release valve to deflate them tires at the same time, to the same pressure. It takes about 10 seconds per 5 PSI, and I just stop periodically to check the gauge on the regulator. I initially thought I could leave the regulator set to a specific PSI and it would auto-deflate, but the release rate is so slow it took like 40 mins to actually deflate the tires from 40 to 15 PSI, heh.
To inflate, I hook the coupler to one affixed to my rear bumper that comes from my pump. However, because I used a regulator valve on the inflator/deflator, I can keep my pump's line pressure at 90+ PSI, and the valve on my inflator / deflator simply starts to hiss when I reach target pressure. It takes 9.5 minutes to go from 15 to 40 PSI, and they are all at the exact same pressure.
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Mine: 2002 SR5, Lifted, Armored, and Accessorized on 33s.
Build Thread
Hers: 2016 Quicksand TRDP, Lifted 2" on ~32s.