Vibrant Performance Male Metric to Hose Barb Adapters are lightweight and constructed from 6061 Aluminum Alloy. Our Male Metric to Hose Barb Adapters deliver quality, reliability, smooth flow, ease of assembly and the comfort of an anti-leak seal and are designed to fit most popular oil pumps, fuel pumps, fuel filters and a wide range of other common components. All Vibrant Performance Adapter Fittings are available in anodized black only. Includes Crush Washer.