The 4OFS Braze Shoulder fitting from Fittings Unlimited Inc is a compact and reliable solution for various applications. With a 4mm diameter, this fitting features a braze shoulder that ensures a secure and leak-proof connection. Made from high-quality materials, it is designed to withstand high pressures and temperatures, making it suitable for HVAC and refrigeration systems. This fitting meets industry standards for performance and safety, providing peace of mind for professionals. Its small size allows for easy installation in tight spaces, making it a versatile choice.