Mine is the next smaller, without the external sand outlet, and it needs to be table mounted.
Still can fit an intake manifold, though.
What I do when the siphon tube gets clogged with moist sand or debris, is simply pull the tube off the gun, and "back blast" the tube.
Works every time.
With that valve at the bottom, I'm a little concerned there's just more places for moist sand or debris to get stuck, and it would require a more powerful back blast to clear.
I agree the Tractor Supply gun, a better light, and a shop vac attachment make those cabinets WAY better, and still less than a non HF unit of the same size.
In fact, last time I checked, the saving was so great, you could buy two HF cabs and both the together for the same price.
