The Watts Fluidair Male Fitting 20B/40mm Internal Hex is designed for reliable fluid transfer in various applications. This fitting features a robust construction that ensures durability and longevity. With a 20B size and 40mm internal hex, it provides a secure connection for fluid systems. The fitting is compatible with standard piping systems and meets industry standards for quality and performance. Ideal for use in HVAC, plumbing, and industrial applications, it offers excellent resistance to pressure and temperature variations.