BeerGun® Bottle Filler Version 2 with Accessory KitThe BeerGun is an innovative stainless bottle filler that is less complex than a traditional counter pressure filler. One handed operation, just pull the trigger! Easily fill a growler of your kegged beer for a party or fill perfectly carbonated bottles for competition. The BeerGun purges a bottle with CO2 gas from a draft system and then transfers carbonated beer from a keg into the purged bottle with minimal foaming, preserving a high level of the