Shields Hose - Sierra Supply Hose - Fuel Feed A1-15LP - 1/2" x 25' - 3680125. SAE J1527 Type A1-15 - ISO 7840. Low permeation fuel hose has a plastic barrier veneer with NBR outer layer tube to limit permeation. Polyester reinforced and complies with EPA and CARB low permeation requirements. Weather/UV resistant NBR/PVC cover.. Features:. Size - 1/2" x 25'. Fuel feed - gasoline up to 85% ethanol blended fuels / diesel / bio-diesel all blends. Meets USCG Type A1-15 requirements for pleasure boats. ISO 7840 Type A1. NMMA/CE type accepted. Temperature range: -20F to 212F