Following are some of the generally used 201 Stainless Steel cartridge heaters, please click the scale to go to the right specification page. Also, the warmers would be custom for different sizes, power and voltage, once you need, please contact with us freely. nine Tube DiameterLength25-35mm38-48mm50-60mm62-75mm80-95mm98-115mm120-135mm140-160mm165-185mm190-220mm225-255mm265-300mm320-340mm380-500mm 10mm Tube DiameterLength25-35mm38-48mm50-60mm62-75mm80-95mm98-115mm120-135mm140-160mm165-185mm190-220mm225-255mm265-300mm320-360mm380-500mm 10 Tube DiameterLength25-35mm38-48mm50-60mm62-75mm80-95mm98-115mm120-135mm140-160mm165-185mm190-220mm225-255mm265-300mm320-360mm380-500mm 11mm Tube DiameterLength25-35mm38-48mm50-60mm62-75mm80-95mm98-115mm120-135mm140-160mm165-185mm190-220mm225-255mm265-300mm320-360mm380-500mm 12mm Tube DiameterLength25-35mm38-48mm50-60mm62-75mm80-95mm98-115mm120-135mm140-160mm165-185mm190-220mm225-255mm265-300mm320-360mm380-500mm If you would like extra size,please hyperlink here to find:Tube Dia. 6-9mmTube Dia. 9 Dia. 12 Dia. 17-25mm 12mm*120/125/128/130/135mm Heating Element Mould Single End Wired Cartridge Heater 350W/370W/380W/390W 110V/220V/380V 5pcs/lot Specifications: Product Name: Cartridge HeaterMaterial: 201 Stainless SteelTube Diameter: 12mmTube Length: 120mm/125mm/128mm/130mm/135mmWire Length: 300mm(11")Power: 350W/370W/380W/390WVoltage: 110V/220V/380VPackage: 5pcs/lot Cartridge Heater Pay attention: Power Allowance -10%~+5% Shopping Tips: 1: Suitable for abrasives heating. Common Application Industry:Core capturing Machine,packaging machinery,flat vulcanizing machine, and so on spot isn't always relevant to liquid and air heating, non-standard merchandise can touch us for custom. 2. How to return to a choice 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 unfavourable 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 verify the explicit parameters earlier than ordering the customer triggered the mistake, the company does not help the return. Instructions for use:1. Before use, please measure the flexibility on multimeter. If there is not any undertaking after measured then would be installed. If there's no power, please touch with us. The cartridge warmers should be connected with the correct wiring method, wiring mistakes could cause gradual heating or damage two typical wiring tips of customers are as follows: SHIPPING NOTICEAll packages from our shop are registered site: 17track/en, PAYMENTVISA,Mastercard,WESTERN UNION,Maestro,Bank Transfer,QIVI WALLET,WebMoney,Boletol,PayPal WARRANTY SERVICEDelivery Time:Ship out within 3-5working daysAll emails may be answered inside 24 hours REFUND or RESENDIf items no longer acquired or damaged,please cooperate with us to take photos when you get keep of it, then provide us the evidence,we will refund or resend a brand new one to you,thanks FEEDBACKAny questions please be at liberty touch with us earlier than you leaving a feedback,we will try the finest that will aid you resolve it Immediately.