Functionally identical to the White Rodgers 36G22-209 Gemini series

With two internal SPDT auxiliary switches and a field-selectable spring return direction

Self-Powered Design: Inductive power from the monitored line eliminates the need for external power supplies or batteries

Durable Construction: Built to withstand the harsh environment of a furnace burner box or plenum

This blue spring is rated for 5" to 8

Bard HVAC 8403-089 Thermostat 319825-402 Functionally identical to the WhiteThe Bard 8403 089 Thermostat is a field proven 1H 1C programmable thermostat built on the Honeywell T4 Pro Series platform. This unit serves as the direct replacement for Bard 8403 057 and Honeywell TH3110D1040, providing a seamless upgrade path for legacy single stage residential and light commercial HVAC systems. Designed for technical efficiency, it features a UWP mounting system and a tool less terminal block, significantly reducing installation