Following are among the commonly used 201 Stainless Steel cartridge heaters, pleaseclickthe length to visit the right specification page. Also, the warmers can becustom for different sizes, energy and voltage, if you need, please contact 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 need more size,please hyperlink here to find:Tube Dia. 6-9mmTube Dia. 9 Dia. 12 Dia. 17-25mm High-Density Cartridge Mold Heater 2pcs/lot 13mmx265mm-300mm Heating Element 860W-1000W 110V/220V/380V Specifications: Product Name: Cartridge HeaterMaterial: 201 Stainless SteelTube Diameter: 13mmTube Length: 265mm/270mm/280mm/290mm/300mmWire Length: 300mm(11")Power: 860W-1000WVoltage: 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 call the correct 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 confirm the explicit parameters earlier than ordering the shopper induced the mistake, the company doesn't assist the return. Instructions for use:1. Before use, please measure the ability on multimeter. If there is not any challenge after measured then can be installed. If there is not any power, please contact with us. The cartridge warmers needs to be linked with the proper wiring method, wiring mistakes could cause slow heating or damage two typical wiring tricks of customers are as follows: SHIPPING NOTICEAll applications 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 inside 3-5working daysAll emails can be answered inside 24 hours REFUND or RESENDIf items no longer received or damaged,please cooperate with us to take images when you obtain it, then reward us the evidence,we will refund or resend a brand new one to you,thanks FEEDBACKAny questions please feel free contact with us before you leaving a feedback,we will try the best that can assist you remedy it Immediately.