11407 Engine Block Immersion Heater with 1″ NPT Thread Brass Adapter Approved 120 ボルト 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 “NPT standard interface design, 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…