Test low-side fuel pressure and compression on Powerstroke®, Cummins®, Duramax®, and other light and medium-duty trucks—test vacuum and more with the Snap-on Pressure Testing Sets. Our EEDF700-MSTR master set includes the adaptors found in EEPD500, EEPD501, EEDF500, EEDF502, EEDF503 with no duplication and no analog gauges. Stay organized with compartments in the top tray and moveable dividers in the lower section allow you to store components neatly as desired.