The Boulder Aspen Slim Replacement Tank is intended for use with the Aspen Slim vape pen and heating element/coil. This tank is 510 threaded and includes the heating element. To replace your old tank, simply unscrew it from your Slim device and screw a new tank on.
When using these pods, we recommend that you allow the liquid to prime within your pod for 3 to 5 minutes after filling.