Speedaire 20 gal single stage air compressor. Wired for 220-230 vac. This is an older but fully functioning unit. It has been a good and reliable air compressor but I no longer need one this big. I use a smaller one for nailers and automotive tools now. A new equivalent Speedair compressor model 1NNF6 retails for over $900.00. You can have this one for $100.00.