Castair, Inc. is a family-owned manufacturer of air compressors based in Spicer, MN since 1991. They specialize in producing oil-lubricated pumps made of cast iron, offering a range of standard compressors for various applications including contractor, garage, commercial, industrial, and rotary screw. Castair focuses on educating customers about the differences in their compressors compared to competitors, emphasizing the value and longevity of their products. They also provide custom compressor solutions and a complete line of air system accessories such as filters, regulators, lubricators, dryers, and aftercoolers.