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