HPS Performance Products HTSR-325-350-L6-BLK Silicone Reducer Coupler Hose to ID - 3-1/4 3-1/2 6 Black

The HPS Performance Products HTSR-325-350-L6-BLK is a high-temperature 4-ply reinforced silicone reducer coupler hose designed to connect two pipes of differing diameters. With a 3-1/4" (83mm) to 3-1/2" (89mm) inside diameter and a 6" overall length, this straight reducer hose is an ideal solution for custom turbo or intercooler piping fabrication, DIY intake builds, radiator cooling systems, and marine or industrial plumbing applications.

Key Features:

• Constructed from high-temperature 4-ply reinforced silicone with knitted premium polyester fabric for superior strength and flexibility
• Meets and exceeds SAEJ20 industry standards — rated for heavy-duty pressure connections and extreme temperature environments
• Temperature range: -65°F to +350°F (-53°C to +177°C)
• Outside diameter: 3.66" – 3.90" (93mm – 99mm)
• Wall thickness: 4.5mm (±0.5mm)
• Resistant to UV and ozone degradation for long-lasting performance
• Compatible with water, coolant, and antifreeze
• Not compatible with fuel or oil
• Backed by HPS Limited Lifetime Warranty

Suitable for automotive, marine, commercial truck, agricultural, turbo diesel, and high-performance racing applications, this black silicone reducer hose delivers a secure, leak-free connection between mismatched pipe diameters in demanding environments.