The hose and adapter it came with was garbage. I had to buy the following.
EPAuto Commercial Grade Dual Head Tire Inflator Gauge with Air Hose
Flexzilla HFZ1450YW2 1/4″ (inches) x 50′ (feet) Air Hose, 50 ft, MNPT Fittings, Heavy Duty, Lightweight, Hybrid, ZillaGreen-HFZ1450YW2
After that, I could properly inflate my tires.