This unit features a 36-inch capillary tube paired with a 3/16" x 11-1/8" nickel-plated sensing bulb

it is designed for horizontal or vertical (upward flow) installation

Key Benefits Direct OEM Compatibility: Specifically engineered as a drop-in replacement for Carrier HC39ML706

Can this relay be used in a return air plenum

Resideo VR8305Q4195 Gas Valve 323080-701 This unit features a 36-inchThe Resideo VR8305Q4195 Gas Valve is a 24V dual stage combination gas control designed for professional integration within Heatco heating systems and other high efficiency gas fired appliances. This direct ignition valve features dual automatic operators and a built in servo pressure regulator, ensuring consistent manifold pressure despite fluctuations in the incoming gas supply. Engineered for compatibility with hot surface ignition (HSI) and direct