If you air down most weekends and you'd rather punch in a target PSI and walk away, buy the AirHub system. If you air down once or twice a month and you don't mind watching a gauge for two minutes, buy the Stubby system. Same hoses underneath, same compressor, different manifold, $175 different at the register. That's the whole call.
Everything below is for the reader who wants the longer aisle walk.
Both MORRflate systems do the same job at the core. You connect one manifold to all four tires (or two, depending on the kit), and you air all of them up or down at the same time, from one gauge, with one compressor. No running around the rig. No "wait, was that one 18 or 19?" No squatting at four corners while your friends finish their sandwich at the trailhead.
Both systems use MORRflate's braided paired-hose sets. Both pair cleanly with the TenSix compressor (or another 12V compressor that does similar work). Both are FTC-disclosed affiliate placements for Air Down For What -- we get a small kickback when you buy through these links, at no cost to you, and we only recommend gear we actually run. If you're brand new to any of this and want to back up two steps, start with Airing Down 101 and come back here when you're ready to pick a system.
The split between AirHub and Stubby is not "which one is better." It's "which workflow fits how you actually use your rig."
The AirHub Automagic is the set-and-forget manifold. You connect it to all four tires, plug in the compressor, set your target PSI on the manifold, and walk away. When all four tires hit the target, the AirHub stops. You come back, disconnect, drive off.
It's the right pick if any of these are true:
What the AirHub system costs to assemble:
Total assembled cost lands somewhere between $724 and $763 depending on which hose set fits your rig. The compressor is the biggest line item; if you already run one, the manifold-plus-hoses spend is $399-$438.
The Stubby Multi-Tire Kit is the manual manifold. You connect it to all four tires, plug in the compressor, and watch the gauge. When you hit your target PSI, you shut the compressor off yourself. That's the only meaningful workflow difference.
It's the right pick if any of these are true:
What the Stubby system costs to assemble:
If you got this far and you still don't know, run through these. Answer the first one that's a clean yes.
Either system needs a compressor that moves enough air to be worth the multi-tire setup. The MORRflate TenSix Psi Pro is the pairing we run and the one we link as the affiliate pick. If you've already got a comparable 12V compressor that hits around 10 CFM, you don't need to buy another.
You also want a single-tire deflator on the truck for the times you're airing down one tire (a slow leak you're chasing, a single tire that drifted off the group's pressure, a tire-shop top-off you need to bleed back down). MORRflate sells a Single Tire Digital Deflator that handles this; brass valve-stem deflators from any reputable brand will also work and live in a glovebox for years.
What you don't need: a second manifold, an air tank, a separate gauge if your manifold has one built in, or a "system bundle" that bolts on parts you'll never use. MORRflate doesn't sell the whole system as one cart line, which is on purpose -- you click the three components and you get exactly what fits your rig.
If your truck is brand new to you and you haven't aired down yet, both of these systems are overkill until you've done it once with whatever's already in your toolbox. Borrow a friend's setup, try airing down one tire by hand, feel the difference in the steering wheel. Then come back here and pick a system once you know what you're solving for.
That's the whole thing.
Less air. More trail. See you out there.
Want to learn hands-on?
Reading is great. Practicing with an instructor on a real trail is better. We teach airing down, recovery, and vehicle handling at Sierra Nevada Off Road Academy (SNVORA).