Introducing the RedMax 578931501 Low Permeation Fuel Cap Assembly - the perfect solution for keeping your outdoor equipment running smoothly. Designed specifically for RedMax products, this fuel cap assembly (part number 578931501) is built with low permeation technology to reduce fuel evaporation and ensure optimal performance. Say goodbye to wasted fuel and hello to longer lasting equipment. Don't let a faulty fuel cap hinder your outdoor adventures - trust RedMax for all your outdoor power needs. Upgrade your equipment today and experience the difference with the RedMax 578931501 Low Permeation Fuel Cap Assembly.