Sale!! FlueGardTM Thermometer (3-39). Most precise readings for DOUBLE WALL pipe. Durable genuine porcelain enamel with yellow, orange and red zones clearly indicated on black case — shows temperatures in the center of the fluepipe, at a glance. SPECIFICALLY DESIGNED FOR DOUBLE-WALLED FLUE PIPE. (Fahrenheit and Celsius scales).
Overall Rating (based on real customer reviews): 4.5 out of 5 stars