K-Pump K-Air II 18PSI K-Air is the first fully integrated device of its kind designed specifically for the inflatable watercraft market and already is being called a real game changer by manufacturers and consumers alike The K-Pump K-Air II combines a blow off valve to avoid over inflation and a standard tire/car valve for easy inflation with an air compressor Proper inflation of your watercraft is crucial for your boat or SUP to reach optimal performance The K-Air II allows you to reach the optimal pressure in one step without even thinking about it