An Engine Valve Cover Breather Hose is constructed from materials resistant to the fluid being conducted. The inner diameter of a hose refers to the measurement of the hollow hose's internal opening. It determines the flow rate and volume capacity of the hose. The outer diameter of a hose refers to the measurement of the hose's external circumference.Attributes:• Helps maintain proper ventilation in the crankcase, reducing the risk of oil contamination• Manufactured to precise specifications and are built for durability and reliabilityApplications:An Engine Valve Cover Breather Hose allows for the release of excess pressure that can build up within the crankcase during engine operation, preventing potential damage to seals and gaskets.