Electric water heater pipe all voltage available, 50hz, 60hz. Ce certificate strictly process ... through strict process technology factory price quality certification : CEelectric water heater element/part Features The structure of tubular electric heating element ... : Stainless steel seamless pipe, welded pipe, copper, yellow brass pipe, carbon steel pipe Common diameter:Φ22,Φ20,Φ18,Φ16,Φ14,Φ12 ...