PTC heater, self controlling heater, long life, stainless steel pipe, easy to assemble. Water heater1) Applied votage could be 12~36V, 100~380V.2) The length could be selected by customer between some range, larger power could be made with longer tube. 3) The fixing connectted screw or flange, could be consist of brass, aluminum or stanless steel. The shape could be selected by customer. 4) The ...