RIDGID introduces the 4.5 Gal. Portable Electric Quiet Compressor. Coming in at 77 db, this unit is up to 75% quieter than leading competitor units, making it awesome for jobsites and keeping the crew working all day. STRONGStart Technology allows this unit to reliably start in any power condition. This unit is also up to 61% more compact than leading competitor units allowing for easier transport and storage, without sacrificing any power, all while having a powerful 200 PSI. Locking Regulator: Holds knob to prevent unwanted pressure changes. 1/4 in. Turn Ball Valve Tank Drain: Drains tank quickly and easily with 1 turn.