The Terminator v2 is an improved version of SmokTech's Terminator Tank. It's no longer rebuildable, but performance and ease-of-use has been improved greatly. This tank comes with a 2.4-ohm coil pre-installed. With this new design, the top and bottom caps now screw in securely, instead of being held in place by O-rings. The 510 adapter is now built in to the bottom cap, so you no longer have to worry about the atomizer sliding out of the tank. This is an awesome tank that produces amazing flavor and vapor, and has an extremely smooth draw. Instructions: To fill, simply unscrew the top cap and fill along the side of the tank. Then, replace the top cap. After filling, prime the coil with 2-3 drops of liquid by dripping directly down the top of the atomizer or drip tip. The atomizer protrudes from the top of the tank about ½ inch. Twist this part to adjust juice flow. Screwed all the way clockwise will shut off all juice flow. Twist counter-clockwise to open the juice flow to your desired level.