Cleaning surface condenser tubes of debris can take a toll on you. That’s why you need a tube cleaner gun for your high volume tube cleaning jobs. The BSL-50 uses high pressure water to fire projectiles down tubes, quickly cleaning dirt and debris. It also includes a separate, patented air pressure assisted trigger requires an incredible 90% less effort for firing projectiles – what a difference when you have thousands of tubes to clean! An easy-to-attach, padded aluminum shoulder stock provides added leverage when you need it. There's no bulky pressure gauge on the BSL-50. The simple “cleared-tube” indicator reliably shows when the projectile has exited the tube. But don’t let all this comfort fool you – with a flow rate of up to 50 GPM, the BSL-50 Big Shot cleans tubes faster than ever. Use with the BFP-3510 or other tube shooting machines. Patented. Note: BSL-50 uses only water pressure to fire projectiles. Air only used for trigger assistance.