Since their introduction in 1989, our Impulse line of scuba diving snorkels have been the best-selling in the world. With features designed with comfort and performance in mind, the Impulse snorkel is the most popular go-to for any scuba diving environment.

Features:

Keeps Water OutThe Impulse has two valves: if a wave breaks over the snorkel, the upper valve directs most of the water out before it reaches the mouthpiece. But if water does get past the first valve, it will drain out through the lower valve. 
Clears EasilyIn the unlikely event that you would need to clear the reservoir below the mouthpiece, all it takes is a gentle puff of breath. The flex section allows for easy positioning and will drop away when not in use