Key Features
Ideal for heavy duty pressure connections and high temperature applications. Max. temperature rating: 350F (177C).
4-ply reinforced silicone design to ensure long lasting quality over rubber hoses.
Compatible with water or anti-freeze such as coolant. NOT compatible with fuel or oil.
Allows for a seamless connection between two different sizes pipes
Suited for marine, industrial, custom turbo, intercooler piping, intake, and radiator cooling applications.
Inside Diameter 1: 3 1/4". Inside Diameter 2: 3 1/2". Length: 4".
Color: Blue.

This HPS Performance 4-ply silicone straight reducing coupler is designed to meet and exceed SAEJ20 industry standards. It is ideal for heavy duty pressure connections and provides excellent heat resistance in high-temperature applications. Unlike traditional rubber couplers that are sold in auto parts stores, HPS Performance high temperature silicone couplers are designed and engineered to meet a wide range of high-performance requirements. The reduction in diameter from one end to the other allows for a seamless connection between two different sized pipes. This product is well suited for marine and industrial use, custom turbo or intercooler piping fabrication, and DIY intake or radiator cooling system projects. REMARK: Not compatible with fuel or oil.