The technical parameter of the water heating element is as your reference: the power is between 1500W and 2000W;the voltage is 220V;the flange is Φ47 49mm;the material is AISI304;high quality,suitable price,nice after sales-service the product has received the CE certificationThis heating element is suit for the water boiler,industrial tank and so on. We also can manufacture your products according to your requirement. Please feel free to contact with us. Welcome to your kind inquiry. Thanks for your kind attention in advance.