Following are a few of the generally used 304 Stainless Steel cartridge heaters, please click on the dimensions to go to the correct specification page. Also, the warmers can be custom for various sizes, energy and voltage, once you need, please touch with us freely. 12 Tube DiameterLength25-35mm38-48mm50-60mm62-75mm80-95mm98-115mm120-135mm140-160mm165-185mm190-220mm225-255mm265-300mm320-360mm380-500mm 13mm Tube DiameterLength25-35mm38-48mm50-60mm62-75mm80-95mm98-115mm120-135mm140-160mm165-185mm190-220mm225-255mm265-300mm320-360mm380-500mm 14mm Tube DiameterLength25-35mm38-48mm50-60mm62-75mm80-95mm98-115mm120-135mm140-160mm165-185mm190-220mm225-255mm265-300mm320-360mm380-500mm 15mm Tube DiameterLength25-35mm38-48mm50-60mm62-75mm80-95mm98-115mm120-135mm140-160mm165-185mm190-220mm225-255mm265-300mm320-360mm380-500mm 16mm Tube DiameterLength25-35mm38-48mm50-60mm62-75mm80-95mm98-115mm120-135mm140-160mm165-185mm190-220mm225-255mm265-300mm320-360mm380-500mmIf you wish more size,please hyperlink here to find:Tube Dia. 6-9mmTube Dia. nine Dia. 12 Dia. 17-25mm Heating Element 15mm×380mm-500mm 220V/110V/380V Cartridge Heater 1700W-2300W for Heating Applications 2PCS Specifications: Product Name: Cartridge HeaterMaterial: 304 Stainless SteelTube Diameter: 15mmTube Length: 380mm/400mm/420mm/450mm/500mmWire Length: 300mm(11")Power: 1700W-2300WVoltage: 110V/220V/380VPackage: 2pcs/lot 15mm Cartridge Heater Pay attention: Power Allowance -10%~+5% Shopping Tips: 1: Suitable for abrasives heating. Common Application Industry:Core shooting Machine,packaging machinery,flat vulcanizing machine, and so on spot isn't always applicable to liquid and air heating, non-standard products can touch us for custom. 2. How to choose the proper specifications? 1)Voltage: (110V/220V/380V/12V/24V and so on)2)Wattage: (there is error -10% - +5%)3)Tube Diameter:(The default diameter is a negative tolerance. For example:10mm is 9)Tube Length: (The default diameter is +/-2mm)5) High Temperature Line:(Default 300mm) 3. About Non-standard customization Instructions:Please confirm the specific parameters before ordering the customer brought on the mistake, the company would not assist the return. Instructions for use:1. Before use, please measure the ability on multimeter. If there's no subject after measured then could be installed. If there is not any power, please touch with us. The cartridge heaters ought to be connected with the correct wiring method, wiring errors can cause slow heating or harm two standard wiring methods of customers are as follows: SHIPPING NOTICEAll purposes from our store are registered site: 17track/en, PAYMENTVISA,Mastercard,WESTERN UNION,Maestro,Bank Transfer,QIVI WALLET,WebMoney,Boletol,PayPal WARRANTY SERVICEDelivery Time:Ship out inside 3-5working daysAll emails could be spoke back within 24 hours REFUND or RESENDIf goods now not obtained or damaged,please cooperate with us to take photos once you obtain it, then gift us the evidence,we will refund or resend a new one to you,thanks FEEDBACKAny questions please be at liberty contact with us earlier than you leaving a feedback,we will attempt the best that will assist you to clear up it Immediately.