SRP Silicon Joiners are all made to a very high standard of quality, each having 3 layers of reinforcing, and are designed to handle high boost applications without the risk of blowing, leaking or splitting.

This joiner has a  3" / 76mm ID at one end with a 4" / 102mm ID at the other and is 76mm in lenth.

Please contact us directly when buying 3 or more assorted joiners as we have a special discount rate for bulk buyers.