SWOOSH | sku: 314823101 Swoosh 20 G Drain Gun Big Shot SWOOSH 20 g Drain Gun Big ShotProduct OverviewThe Drain Gun is designed to blow out drain lines instantly. New larger 20 g SWOOSH CO2 cartridges deliver 800 PSI of oil free air to clear the line, with 25% more capacity. Each unit comes equipped with a... Log in for pricing