Wide Application: The PQY 3.0 inch quick release V-Band clamp is universal for 3 inch intake intercooler piping, 3 inch turbocharged intake piping,providing a leak-free.Also ideal for racing appllication with highly advanced pressurized air applications. | Construction: The quick release clamp assembly is consist of aluminum band clamp with locking pin, aluminum weld furrules,rubber union sleeve and rubber seal o-ring.Pressure rating is 800 psi.Temp. rating is 400°F. | Performance: The aluminum quick replease v band clamp with flange is a great replacement for your original vibrant clamps and offerrs tighter tolerances and a leak-free.These v band clamp will hep you build an impressive custom intake. | Size Option: We offer several sizes quick release v band clamp of 3 inch ,2.5 inch,3.5 inch ,4 inch,2.75 inch,2 inch.Please confirm your desired size before purchase. | Installation Tip: Please take apart the quick release clamp and weld on the furrules first ,and wait until it cools down enough ,then reinstall the seal o-ring and clamp to avoid o-ring destroyed by the high temperature durling welding.If you are missing pin,please contact us for help .You can also find quick release v band clamp of pinless type in our store.