PTC heater, self controlling heater, long life, easy to assemble. ShapeTotal lengthWidthHeightInnerdiameter of tubeApplied voltageSurface temperature in airPowerin 25°CwaterStraight aluminum tube150mm21.520.5Φ1012~36VDC,100~240VAC260°C380WStraight aluminum tube150mm21.523.5Φ1312~36VDC,100~240VAC260°C400WStraight aluminum tube300mm21.523.5Φ13100~240VAC260°C820WStraight aluminum tube200mm21.525Φ ...