Trane TUB8058 Tube 320788-703 the module is optimized for

the module is optimized for high-cycle performance

While some 200RB valves can be converted for bi-flow use with a kit

this specific model is factory set and certified for ASME Section I steam service

Attempting to use a 24V or 120V control signal will prevent the contacts from engaging correctly

Its high-flow design minimizes pressure drop while providing the fast-acting response time required for modern combustion system components

Trane TUB8058 Tube 320788-703 the module is optimized forFor field technicians and contractors maintaining high efficiency residential systems, the Trane TUB8058 Tube (also designated as TUB08058) is a critical OEM replacement part designed for accurate burn in and heat transfer cycles. This genuine Trane furnace tube serves as a female transfer component within the gas manifold or heat exchanger assembly, ensuring a sealed, pressurized pathway for combustion gases. Engineered with heavy gauge aluminized