4 Internal Diameter:
This 4 long coupling is designed to connect to a tube with a 4 diameter. Its commonly used on aFe POWER cold air intake systems, but can be used for a variety of projects.
Polyurethane Construction:
Its flexible, injection molded polyurethane construction is designed to meet standards for modern elevated engine compartment temperatures.
Stainless Steel Clamps:
Two corrosion-resistant stainless-steel worm clamps (#072) are included, providing a secure seal for virtually any application.