Our 1/8" Brass Compression Union is the ideal solution for brake line connection needs. Our unions are engineered with unmatched superior quality to ensure reliability and durability. Made of robust and corrosion-resistant brass material, these unions are perfect for use on winter roads that are salted. Our unions work perfectly with a variety of lines including steel, copper nickel, copper coated steel, PVF-coated, and stainless steel lines. We stand behind the quality of our unions and back them with a lifetime warranty so you can make your purchase with confidence when you buy from 4Lifetime.