Following are among the generally used 201 Stainless Steel cartridge heaters, please click on the scale to go to the proper specification page. Also, the warmers can be custom for different sizes, power and voltage, when you need, please touch 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 need extra size,please hyperlink right here to find:Tube Dia. 6-9mmTube Dia. 9 Dia. 12 Dia. 17-25mm 11mmx225mm-255mm 620W-700W Cartridge Heaters Heating Element Single Ended AC110V/220V/380V Heater 201SUS 2pcs/lot Specifications: Product Name: Cartridge HeaterMaterial: 201 Stainless SteelTube Diameter: 11mmTube Length: 225mm/230mm/240mm/250mm/255mmWire Length: 300mm(11")Power: 620W-700WVoltage: 110V/220V/380VPackage: 2pcs/lot Cartridge Heater Pay attention: Power Allowance -10%~+5% Shopping Tips: 1: Suitable for abrasives heating. Common Application Industry:Core taking pictures Machine,packaging machinery,flat vulcanizing machine, and so on spot is not relevant to liquid and air heating, non-standard merchandise can touch us for custom. 2. How to return to a decision the right 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 detrimental 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 categorical parameters before ordering the shopper induced the mistake, the company doesn't support the return. Instructions for use:1. Before use, please measure the ability on multimeter. If there isn't any field after measured then would be installed. If there isn't any power, please contact with us. The cartridge warmers ought to be related with the proper wiring method, wiring errors can cause slow heating or harm two ordinary wiring tips of customers are as follows: SHIPPING NOTICEAll packages 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 within 3-5working daysAll emails can be spoke back within 24 hours REFUND or RESENDIf items not acquired or damaged,please cooperate with us to take photos once you achieve 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 before you leaving a feedback,we will attempt the finest that may provide help to resolve it Immediately.