For contractors performing furnace repair or preventive maintenance

and PGH series

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

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

Functional Devices-RIB TR20VA007 Transformer For contractors performing furnace repairThe 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,