Sierra International Shields Fire-Acol Fuel Vent Hose 5/8" x 25' Boating Hardware & Maintenance Supplies I.D.: 5/8" or 15.9mm, odd.: 31/32" or 24.6mm, wt. "C": 25, max WP: 50 Shields fire-alcohol fuel vent hose resists gasoline/alcohol blended fuel and is Fire resistant. It features a weather/UV resistant NBR/PVC cover This hose primarily used for fuel vent lines (gasoline up to 85% ethanol blended fuels/diesel fuels) The temperature ranges from -20 Degree to 160 Degree Meets USCG type A2 Requirements for pleasure boats. Meets Saej1527 type A2 ISO 7840 type A2 and NMMA/CE type accepted standards