Double K - Equal Vent - Equalization Trainer Galapagos The diver brings this tag

The diver brings this tag back to the surface as proof that the announced depth was reached

without any real need to rinse it in fresh water after use

The better you understand and control the movement of your tongue

Technical specifications

use thin neoprene socks if needed

Double K - Equal Vent - Equalization Trainer Galapagos The diver brings this tagDouble K Equal Vent PRE ORDER NOW! (delivery ~ end. August) The Double K Equal Vent is a compact equalization training tool for freedivers who want to practise pressure equalization outside the water. It is especially useful for divers working on Frenzel equalization, tongue control and dry equalization awareness. Equalization is one of the most common limiting factors in freediving. Many problems are not caused by depth itself, but by tension, poor