CVC-230V-300W Diffusion Pumps Overview Other Diffusion Pump Heaters & Heater Wire Product Detail (Click to Enlarge) Overview CVC Cartridge Heater, 230V/300W. Used in 2”, 3”, 4”, 6”, & 10” diffusion pumps. CVC P/N: 065192-1 Order Part $58.00 USD per Unit Quantity View Cart