11407 Engine Block Immersion Heater with 1″ NPT Thread Brass Adapter Approved 120 โวลต์ 400 Watts Heating Equipment

11409 Engine Block Immersion Heater with 3/4″ NPT Brass Adapter 120V 400W Automatic 120 Volts Motor Approved

Product Description American standard adaptation and efficient heat transfer system 11409 engine block heater adopts 3/4 “การออกแบบอินเทอร์เฟซมาตรฐาน NPT, seamlessly ADAPTS to North American and international mainstream engine cooling system, compatible with 400W power output under 120V voltage environment, can quickly increase the coolant temperature to 20-30℃, Ensure that the engine starts at a…