6" ID 90-Degree Blue Silicone Molded Wet Exhaust Elbow with 4 T-Bolt ClampsTrident silicone-blend rubber marine wet exhaust connections. They are molded in very high-temperature blue silicone EPDM blended rubber with a smooth bore and cover; except elbows of 6" I.D. or larger have molded reinforcing ribs on the outside. Features: Four stainless steel t-bolt clamps Very high temp silicone/EDPM blend rubber - molded This elbow has excellent resistance to ozone, salt water, diesel fumes, splash, cold, heat, and aging Exceeds (SAE J2006-R1, and ABYC & NMMA P-1) exhaust standards Blue very high-temperature silicone blended with EDPM rubber at 350AdegF (177AdegC) max continuous Construction: Color: Blue Reinforcement: Reinforcing ribs on 6" I.D. and above Temperature Range: up to 350AdegF (177AdegC) Specifications: Inner Diameter: (inch) 6" / 152.4 mm A: (inch) 7" / (mm) 178 B: (inch) 7" / (mm) 178 C: (inch) 2.25" / (mm) 57.2 D: (inch) 2" / (mm) 57.2 R: (inch) 1.75" / (mm) 44.5 W: (inch) 0.25" / (mm) 6.4 Elbow Degree: 90 degrees Quick Guide (pdf)