Bigfoot Water Rocket Launcher has all the professional brass pneumatic control device parts to make it reliable, safe, and easy to control. Located at the base of the launcher conduit are a brass multi-port manifold, a 3-1/2" pressure gauge, an ASME certified safety pressure relief valve, a water shut off valve, and a "bubble tight" safety check valve. All fittings are assembled with care and attention to detail.
The entire assembled launcher is "bubble tight": no leaks when pressurized! ADDED FEATURE This launcher is made, when necessary, to compensate for other air pumps with a leaky check valve. The Bigfoot launcher does internal air checking while retaining pressure build -up contained within the rocket. No back-flow air leaves the water rocket.