QwikProducts is a line by Mainstream Engineering designed to help technicians in the field solve issues with thermal control and energy conversion with their selection of unique products. They focus on solving real industry problems by bringing innovative and cost-effective solutions to the commercial and residential HVAC industries. Mainstream Engineering started in Research and Development solving issues for NASA and DOD. During that time they created a line of revolutionary products that changed the landscape of HVAC thermal controls. Shop a wide variety of QwikProducts right here at Jackson Systems & Supply.