Welcome to GSIstore. GSIstore is an online store operated by General Supplies Inc. to serve our internet customers. General Supplies Inc. starts its operation in 2005 from its mother company which has been in business since 1992. Located in City of Industry, California, we provide our customers quality products with very reasonable price and great personal attentions. As a small business, we understand each customer is just as important and we look forward to helping you solve your HVACR problems. We are also experts on locating hard to find parts that no one seems to want to help you with. Whatever your HVACR need is, let us know we'll do our best to help.