The Allstar Performance Adapter Fittings, part number ALL50037, provide an essential solution for connecting 3 AN male to 10 mm x 1.50 male fittings. Crafted from robust steel with a zinc oxide finish, these fittings promise longevity and reliability under various conditions. Each pack includes a pair of adapters, complete with copper washers to ensure a secure and leak-proof fit. Ideal for automotive applications, these fittings are a must-have for those seeking precision and quality in every connection.