Madsen represents FPE & Clorius thermostatic and mechanical valves and FSI filtration products. Fluid Power Engineering specializes in high quality, low cost thermostatic valves. Their valves are direct drop-in replacements for AMOT at a fraction of the price. Clorius specializes in the development and production of equipment for monitoring, controlling and regulating heating, cooling and ventilation. FSI is the world’s most innovative manufacturer of liquid filtration products and has patented dozens of designs for filter vessels, filter bags and filter cartridges, providing customers with improved efficiency and significant cost savings.