Aeroquip Straight Adapter Fitting -4 AN Male to -3 AN Male - Steel - Zinc Oxide RS003C0107 designed to fit the base

designed to fit the base of your helmet and allows greater air circulation around the neck

Double-Adjustable Bypass

performance and grip

Dual 10 AN Female O-Ring Inlets

Aeroquip Straight Adapter Fitting -4 AN Male to -3 AN Male - Steel - Zinc Oxide RS003C0107 designed to fit the baseManufactured with high quality aluminum, steel or stainless steel to provide the needed confidence for use in extreme applications. Available in blue anodized or nickel plated finishes for the more popular sizes and configurations. Aeroquip performance plumbing products have been the number one choice of racers for over 60 years. Product Description: Adapter Straight 4 AN Male to 3 AN Male Steel Natural Sold Individually