− Decrease quantity for Fitting, Adapter, NPT to Hose Barb, Straight, Aluminum, Silver Anodized, -6 AN, 5/16 in. Hose Barb, Each Quantity + Increase quantity for Fitting, Adapter, NPT to Hose Barb, Straight, Aluminum, Silver Anodized, -6 AN, 5/16 in. Hose Barb, Each Add to cart