9MP - Tri-Clamp CrossThe 9MP Tri Clamp Cross is a sanitary fitting used for the intersection of two processing lines. It comes in 316L stainless steel and in a variety of sizes. The tube has an outside diameter (O. D.) of " up to 6". It is 3A certified for use in food and beverage processing industries. Tube O. D. A 1 2" 4. 50 3 4" 4. 75 1" 4. 75 1 1 2" 5. 50 2" 7. 00 2 1 2" 7. 00 3" 7. 50 4" 9. 00 6" 12. 75