14MPHR - Tri-Clamp X Rubber Hose Barb AdapterThe Rubber Hose Barb Adapter is a sanitary fitting constructed of 304 or 316L stainless steel, and is available in sizes ranging between 1 2" and 2". It is designed for use in food and beverage processing industries. Tube O. D. Hose Size A B 1 2" 1 8" 1 4" 3 8" 1 2" 3 4" 1. 25 1. 50 1. 50 1. 50 1. 50 0. 15 0. 28 0. 40 0. 54 0. 77 3 4" 1 4" 3 8" 1 2" 3 4" 1. 50 1. 50 1. 50 1. 50 0. 28 0. 40 0. 54 0. 77 1" 3 8" 1 2" 3 4" 1" 1. 50 1. 50 1. 69 1. 69 0. 40