This service hose and gauge set from Weitron is perfect for anyone in need of automotive tools and supplies. It comes in a pack of one and is specifically designed for use with R-1234yf systems. The manufacturer part number is R-1234yf hose and gauge. This set is brand new and still in its original, sealed packaging. It's a great addition to any mechanic's collection and will help ensure your air conditioning chemicals are working efficiently. The hose and gauge set is easy to use and will help you accurately measure the pressure in your system. Don't miss out on this opportunity to purchase a high-quality tool for your automotive needs.