Our stainless steel flame arrestors are heavy duty in construction and are hand polished to a mirror like finish (we even polish the button head bolts that are used in their assembly). The arrestors fit standard carburetors with 5-1/8” opening and feature course stainless steel mesh for optimum air flow. They come complete with two 5/8" breather tubes and meet all U.S. Coast Guard requirements. 10” diameter and 3-3/4” tall.