The 3/16" Brake Line Union Kit by 4Lifetime is the perfect solution for joining your brake lines during a replacement job. This kit includes seven unions total, including five 3/16" unions, one 1/4" union, and one 5/16" union. These unions are compatible with various types of brake lines, including steel, copper nickel, copper coated steel, PVF-coated, and stainless steel lines, making it versatile for any brake line replacement job. These unions are designed to join replacement lines with existing lines to ensure a secure and safe connection. Trust 4Lifetime to provide the best brake replacement parts in the aftermarket automotive part industry, backed by a lifetime warranty. The manufacturer part number for this product is LTBU316KIT.