HPS Performance Products HTSR-300-450-L4-BLK Silicone Reducer Coupler Hose to ID Long - 3 4-1/2 4 Black

The HPS Performance Products HTSR-300-450-L4-BLK is a high-temperature 4-ply reinforced silicone reducer coupler hose designed to transition between a 3" (76mm) and 4-1/2" (114mm) inside diameter pipe with a 4" overall length. Built to meet and exceed SAE J20 industry standards, this silicone reducing hose is an ideal solution for heavy-duty pressure connections and demanding high-temperature environments.

Constructed from industrial-grade silicone rubber reinforced with 4-ply knitted polyester fabric, this reducer hose delivers consistent performance across a wide range of applications including custom turbo and intercooler piping fabrication, DIY cooling and intake systems, commercial trucking, marine, agricultural equipment, aerospace, and motorsports builds.

Key Features:

• Inside Diameter: 3" (76mm) to 4-1/2" (114mm)
• Outside Diameter: 3.39" (86mm) to 4.89" (124mm)
• Hose Length: 4" (102mm)
• Wall Thickness: 5mm (±0.5mm)
• Reinforcement: High-temperature 4-ply polyester construction
• Maximum Working Pressure: 40 PSI
• Temperature Range: -65°F to +350°F (-54°C to +177°C)
• Color: Black
• UV and ozone resistant
• Compatible with air, water, and antifreeze/coolant
• Not compatible with fuel or oil
• Meets and exceeds SAE J20 industry standards
• Backed by HPS Performance Products Limited Lifetime Warranty

This silicone reducer hose is handcrafted from premium-grade silicone material, providing superior flexibility and durability compared to rubber alternatives. Whether used in custom turbo intercooler systems, radiator cooling circuits, intake plumbing, or industrial fluid transfer, the HTSR-300-450-L4-BLK delivers a reliable, leak-resistant connection between mismatched pipe diameters.