The D7 is the valve used by the world’s top inflatable boat manufacturers. Man of Rubber River Gear is proud to be Leafield’s Distributor for The Americas. The D7 has the highest flow rate of all of Leafield’s inflation valves. 60% MORE than the C7. The new D7 valve has improved inflation/deflation speeds and an enhanced clamping method with an ‘O’ ring seal added to the valve core to reduce the risk of leaks.Quality materials and superior engineering ensures that this valve will not leak.