Great Lakes Supply Co. (GLSCO) is a trusted provider of high-quality Water Source Heat Pumps (WSHP) and replacement parts, offering efficient and reliable climate control solutions for commercial and residential properties. Our Water Source Heat Pumps are designed to provide both heating and cooling, making them an ideal choice for energy-efficient systems in buildings with access to a water loop. We also offer a wide selection of WSHP parts, including compressors, pumps, and control boards, to ensure that your system runs smoothly and efficiently. With over 40 years of experience, Great Lakes Supply Co. (GLSCO) is committed to delivering expert solutions, reliable products, and exceptional customer service to keep your water source heat pump systems in optimal working condition. Whether you're looking to install a new system or need replacement parts, we have the right solutions to meet your needs.