Seven compressor motors from 350W to 2000W are offered in combination with five different receiver sizes from 4L to 150L to create a wide range of complete compressor offerings. Our standard receivers are internally coated to resist corrosion. The first number in the description represents the compressor motor size, while the second represents the receiver size in Liters (if a receiver is used). Ultra-quiet Long-life, two-year-warranty Easy to operate, minimum maintenance Handy and easily portable Compact and rugged Anti-corrosion treated valve plate Best-in-class, long-life synthetic oil