8" ID 45-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 clampsVery high temp silicone/EDPM blend rubber - moldedThis elbow has excellent resistance to ozone, salt water, diesel fumes, splash, cold, heat, and agingExceeds (SAE J2006-R1, and ABYC & NMMA P-1) exhaust standards Blue very high-temperature silicone blended with EDPM rubber at 350°F (177°C) max continuousConstruction:Color: BlueReinforcement: Reinforcing ribs on 6” I.D. and aboveTemperature Range: up to 350°F (177°C)Specifications:Inner Diameter: (inch) 8” / 203.2 mmA: (inch) 2.25” / (mm) 5.7 B: (inch) 2.25” / (mm) 5.7 C: (inch) 8.5” / (mm) 21 R: (inch) 2.12” / (mm) 5.4 W: (inch) 0.37" / (mm) 9.4 Elbow Degree: 45 degrees