Research Products is home to a diverse collection of trusted brands, each dedicated to delivering innovative, professional-grade solutions that enhance Indoor Air Quality.
AprilAire is on a mission to make homes healthy. Since 1954, we’ve been delivering Healthy Air solutions to manage air purity, humidity, fresh air, radon, and temperature in every home and climate. Headquartered in Madison, Wisconsin, we value simplicity, innovation, straight talk, and making a positive difference. Trusted by contractors and relied on by millions of families, AprilAire is the brand of choice for professional Healthy Air.
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Anden is built for professional growers, with components proven to perform in demanding grow room environments. Our full lineup includes grow-optimized dehumidifiers, humidifiers, and RO water systems delivering complete environmental control for any facility. From design to service, Anden supports cultivators every step of the way. Based in Madison, Wisconsin, Anden helps growers achieve ideal humidity and maximize plant potential.
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RP Filter delivers high-performance air filtration solutions for residential, commercial, and industrial spaces. Known for quality and service, we help create cleaner, healthier environments while promoting sustainability and long-term system performance. From improving Indoor Air Quality to supporting energy efficiency, RP Filter is the trusted choice. Proudly based in Madison, Wisconsin, we’re committed to cleaner air and better living.
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DriSteem provides advanced humidification, evaporative cooling, and water treatment solutions for commercial and industrial settings. We serve critical spaces like healthcare and data centers, where precise moisture control is essential. With 50+ years of innovation and multiple patented designs, DriSteem delivers systems that meet and anticipate customer needs. Headquartered in Eden Prairie, Minnesota, we are the trusted name in indoor environment control.
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EWC Controls is a leader in HVAC zoning solutions that improve comfort, efficiency, and system performance. Since 1961—and zoning-focused since 1999—we’ve delivered reliable panels, dampers, and accessories trusted by contractors nationwide. Known for innovation and dependability, EWC continues to shape the future of indoor comfort. Headquartered in New Jersey, EWC Controls joined Research Products Corporation in 2024.
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