and HFC refrigerants

For contractors performing furnace repair or preventive maintenance

Durable construction provides reliable performance across HVACR and industrial steam applications

This gasket is used on several McDonnell & Miller products

Whether you are performing a seasonal tune-up or a specific burner assembly repair

Functional Devices-RIB TR20VA007 Transformer and HFC refrigerantsThe Functional Devices RIB TR20VA007 is a heavy duty 20VA control transformer engineered for reliable performance in demanding building automation and industrial HVACR environments. Designed to handle a 277Vac primary voltage input, this step down transformer provides a stable 24Vac secondary voltage output, making it an essential component for powering 24V control circuits, sensors, and relays. Built with professional grade split bobbin construction,