4.0 HP (two twin 2 HP motors @ 1680 RPM), 20 gal steel tank, sound‑proof cabinet, 65 dBA noise, 12.8 CFM @ 40 PSI, 10.6 CFM @ 90 PSI, Includes 98% air-drying system, auto-drain valve, Oil-free dual-piston pump, rated ~3,000 hours, rolling unit