Binks Trophy Gravity Spray Gun | LVMP, 1.4 mm Nozzle, 23-L Air Cap
Binks AA4400M Air-Assisted Airless Spray Gun - Elmbridge UK
BINKS MACH 1 94P BBR HVLP PAINT SPRAY GUN TEAL COLOR & REGULATOR MAX INLET 33PSI | eBay
What does the top control knob do? This is a Binks M1-g spray gun. The bottom knob controls fluid but the top knob doesn't seem to make a difference on anything. I