A Breather allows for the exchange of air between the hydraulic system and the surrounding environment. It is typically used to equalize pressure and prevent the buildup of pressure differentials that can affect the performance and reliability of the system. It is made up of plastic.Attributes:• Maintains a stable pressure within the system and prevents the formation of a vacuum or excessive pressure• Manufactured to precise specifications and is durable and reliableApplications:A Breather allows air to enter or exit the system as needed, depending on changes in temperature, fluid level, or pressure.