R37520B009 | 300F M/R SPST ROLLOUT SWITCH | Armstrong Furnace

Armstrong Furnace 300F M/R SPST Rollout Switch (R37520B009) The Armstrong Furnace 300F M/R SPST Rollout Switch (R37520B009) is a crucial safety component designed to protect your heating system from potential hazards. This switch is specifically engineered to detect excessive temperatures within the furnace, triggering an automatic system shutdown to prevent damage or fire. Its durable construction ensures reliable operation in demanding environments, making it an essential part of any furnace maintenance and repair toolkit. Shop our HVAC supply store for the best prices and fast shipping on all your furnace parts and accessories!