A Trailer Parking Brake Tube Assembly provides air pressure to control the parking brakes on the trailer. It acts as a conduit, delivering compressed air from the towing machine's braking unit to the trailer's parking brake chambers. This allows for the activation and deactivation of the parking brakes, ensuring the trailer remains securely parked. The assembly includes an O Ring Face Seal Sleeve, and Nut to ensure a secure and leak-free connection.Attributes:• Withstands 21000 kPa relief valve pressure• Manufactured to precise specifications and are built for durability, and reliabilityApplications:A Trailer Parking Brake Tube Assembly allows compressed air to flow through the brake lines and tubing of the Trailer Parking Brake Tube, connecting the brake control valve to the parking brake chambers on the trailer.