4-3/16 IN to 3-3/4 IN Reducer:
This 2-3/8 IN long coupling is designed to connect to tubes with a 4-3/16 IN and 3-3/4 IN diameter. It's commonly used on aFe POWER cold air intake systems, but can be used for a variety of projects.

Silicone Construction:
Its silicone construction features a layer of polyester reinforcement, making it extremely durable and less prone to deformation, tearing, and other damage, than average couplings.

Stainless Steel Clamps:
Two corrosion-resistant stainless-steel worm clamps are included, providing a secure seal for virtually any application.

Note:
Not for use on pressurized side of supercharged or turbocharged applications.

Spare Parts Kit Contains:

• 05-01459 - Silicone Coupling
• 03-50009 - Clamp (3-1/16 IN - 4 IN)
• 03-50006 - Clamp (2-1/2 IN - 4-1/2 IN)