2CMP - Tri-Clamp 90° ElbowThe 2CMP Tri Clamp 90 Elbow is a sanitary fitting designed to offer a secure leak proof connection. It comes in two materials, 304 and 316L stainless steel, and a variety of sizes. The tube has an outside diameter (O. D.) of " up to 12". It is 3A certified for use in food and beverage processing industries. Tube O. D. A R 1 2" 1. 62 1. 12 3 4" 1. 62 1. 12 1" 2. 00 1. 50 1 1 2" 2. 75 2. 25 2" 3. 50 3. 00 2 1 2" 4. 25 3. 75 3" 5. 00 4. 50 4" 6. 62 6. 00