Weiss instrument HWBM25 Hot Water Bimetal Round Face Dial Thermometer, 2-1/2 in, 1/2 in NPT Connection, 2-1/2 in
Weiss instrument Dial Thermometer, Hot Water Bimetal Round Face, 2-1/2 in Dial, 1/2 in NPT, Connection Location: Rear, 2-1/2 in Stem Length, 32 to 250 deg F, Steel Case/Brass Stem