Durable construction provides reliable performance across HVACR and industrial steam applications

ensuring the exact gas volume necessary for reliable pilot ignition

This bulk pack of 25 valve cores provides service technicians with a reliable supply for routine maintenance and emergency repairs

forcing a professional diagnostic of the combustion process

This gasket is used on several McDonnell & Miller products

Functional Devices-RIB TR20VA007 Transformer Durable construction provides reliable performanceThe 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,