Following are a few of the generally used 304 Stainless Steel cartridge heaters, please click on the dimensions to visit the correct specification page. Also, the heaters would be tradition for different sizes, calories 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 link here to find:Tube Dia. 6-9mmTube Dia. 9 Dia. 12 Dia. 17-25mm Cartridge Heater 14*120/125/128/130/135mm 550W-590W 304SS Heating Element 110V/220V/380V 5pcs/lot Specifications: Product Name: Cartridge HeaterMaterial: 304 Stainless SteelTube Diameter: 14mmTube Length: 120mm/125mm/128mm/130mm/135mmWire Length: 300mm(11")Power: 550-590WVoltage: 110V/220V/380VPackage: 5pcs/lot 14mm 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 applicable to liquid and air heating, non-standard products can touch us for custom. 2. How to choose 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 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 caused the mistake, the company doesn't help the return. Instructions for use:1. Before use, please measure the flexibility on multimeter. If there isn't any situation after measured then could be installed. If there isn't any power, please contact with us. The cartridge warmers must be linked with the correct wiring method, wiring mistakes could cause slow heating or injury two traditional wiring methods of customers are as follows: SHIPPING NOTICEAll programs 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 might be answered inside 24 hours REFUND or RESENDIf items now not acquired or damaged,please cooperate with us to take images once you receive it, then provide us the evidence,we will refund or resend a brand new one to you,thanks FEEDBACKAny questions please be happy contact with us earlier than you leaving a feedback,we will attempt the best that will show you how to solve it Immediately.