Series 337 Fuel Lines (Silverado 4000) are the best B1 fuel hose on| | THV500 barrier layer, a nitrile jacket, polyester reinforcement and a CPE cover| | Silverado 4000 hose has a small OD, is extremely flexible and easy to clamp| | Silverado 4000 Outboard Fuel Line is resistant to ethanol blended fuels| | EPA and CARB compliant| | Silverado 4000 has a THV barrier layer to prevent permeation| | Polyester reinforcement for strength and is weather and UV resistant CPE cover| | The gray color keeps the hose cooler| | | | ID: 1/4" or 6.35 mm| | OD: 7/16" or 10.90 mm
