The 4Mini Barb-3Mini Barb Union from Fittings Unlimited Inc is a versatile fitting designed for fluid transfer applications. Featuring a 4mm mini barb on one end and a 3mm mini barb on the other, this union ensures compatibility with various tubing sizes. Made from high-quality materials, it offers excellent durability and resistance to wear, making it suitable for both industrial and DIY projects. The compact design allows for easy installation in tight spaces, while the secure connection minimizes the risk of leaks, making it ideal for medical, automotive, and general plumbing applications.