The original by Fat Daddy directly from the USA. Special version for bottom feeder.
Based on version 4 (heat-resistant O-rings and insulators up to 400° Celsius). Integrated one-piece power connector) here the "Version 4 Bottom Feeder" specially developed by Fat Daddy Vapes for bottom feeders.
Adjusted Top Cap with integrated gasket.
Extra long hose connection.
Mobile side current connection with pre-drilled hole to simplify soldering.
Short and long version.