2 to 2.5 Inch Silicone Reducer Coupler Hose 4-Ply Reinforced Turbo/Intercooler/ by | Jul 7, 2026Size 2″ to 2.5″ Reducer. UV and ozone resistant. The hose is designed for easy installation. Material Silicone. We do not accept P.O. Boxes. Temperature resistance: -76F to 500F (-60C to 260C). Add to Favorite.