Perko - Gas Tank Vent - Chrome Plated Brass - 3/4" Hose - 0509DP5CHR. Removable 30 mesh stainless steel wire screen flame arrester. Designed to meet the requirements of the USCG safety standards for gasoline fuel systems.. Features:. Hose - 3/4". Chrome Plated Bronze. Removable 30 Mesh Stainless Steel Wire Screen Flame Arrestor (for use with gasoline applications)