Tubular Heater, Cartridge Heater, Ceramic Heater manufacturer / supplier in China, offering 220V 1000W 1/8" 3/8" Electric Screw Immersion Cartridge Heater with Thermostat, 150/250/300/325/400/500/650/750/1000W Far Infrared Standard Quartz Element, 3kw 4kw 6kw 10kw Stainless Electric Flange Immersion Tubular Tank Heater and so on.