Thermostat Subbases provide system and fan switching, and mounting for T87F Thermostats. The HONEYWELL Q539J1006 SUBASE / ELEC. HEAT T87F is a reliable and efficient subbase that works seamlessly with the T87F thermostat for electric heat systems. Its superior design ensures precise temperature control and energy savings. Enhance your home's comfort and reduce your energy bills with this high-quality subase. Ideal for new installations or retrofits, this subbase is easy to install and maintain, providing a reliable and efficient heating solution for years to come.

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