Description Heater Hose, 5/16 (8mm) I.D. x 5ft long - Gloss Black Material Nylon Reinforced Silicone Warranty One Year Limited Warranty Notes Vibrant Performance nylon reinforced Silicone Heater Hose is very flexible and designed to withstand elevated temperatures.- Temperature Range -65 deg. F to +350 deg F- Suitable for Coolant fluid, water or vacuum service.- Exceeds SAE J20R3 requirements.- Available only in Gloss Black.- Sold in 5 Foot Lengths.