Sprague Devices

GAF Materials in Michigan City, IN offers a wide range of residential and commercial roofing materials, including shingles, leak barriers, and ventilation systems. They also provide specialty building materials such as fiber cement siding and pavement coatings. With a focus on quality and performance, GAF Materials is a trusted choice for contractors, homeowners, and building managers looking to enhance the durability and aesthetics of their properties. Their comprehensive resources and support services make planning and executing roofing projects seamless and efficient. Generated from the website

Founded in 1931, Dwyer Instruments is one of the leading manufacturers of controls and instrumentation products. The company serves various chemical, food, oil, gas, pollution control, and heating, ventilation and air-conditioning companies. It offers products under the brand names, such as Magnehelic, Photohelic, Hi-Flow and Rate Master. Dwyer Instruments manufactures a variety of products that control and regulate pressure, air velocity, temperature, flow, humidity and air quality. The company also provides process control devices, such as fan speed controllers, isolating transmitters, relays, speed switches and switch testers. Additionally, Dwyer Instruments trademarks include Optitrol, Love Controls, Lite Rite, MagneSense and Plast-A-Vane.