AXIAL FAN-230V, 15W, 3100 RPM 106 CFM, 4-11/16" X 1-1/2",;4-1/8" CTRS, SAME AS #681060 EXCEPT CORNERS ARE TAPPED WITH;10-24 THREADS;CORD ONLY USE # 38-1356;BLODGETT MT1828, MT2136E, MT2136G, MT3255, MT3855G, MT3870,;PS536, PS555;NU-VU