Tel-Tru™ Borozin Powder "Smoke" Gun emits dense white clouds of very fine powder "smoke" with each squeeze of the rubber bulb handle. A precision machined valve regulates the amount of powder emitted and closes the barrel entirely when not in use. The Borozin Gun is recommended for applications where the slight acidity of the T-T smoke is undesirable.

Borozin Guns are very useful for locating leaks in small pressure vessels. For example, when the "smoke" is emitted near a suspected window seal leak inside an automobile - with the fan turned on to create a positive pressure - escaping air will leave a slight tell-tale powder streak on the outside pointing to the leak.

The Gun body is finely machine solid brass, chrome plated and polished. It is 1.5" in diameter by 4" long; 5.25" long including the barrel. Plastic carrying case is 9.5" x 6.5" x 3.0".