AIR FILTER P037 SPRINT FILTER KAWASAKI NINJA 1000 SX 2020-2023AIR FILTER P037 SPRINT FILTER Model: P037 The P037 filter, together with the P08F1 85, is the only air filter in the world with water proof characteristics (Sprint Filter patent which allows it to be the only manufacturer in the world to produce waterproof air filters for endothermic engines). The weaving of the fabric guarantees a filtration degree of 37 microns, therefore very high, which combined with the water proof capabilities makes this type of