The Phillips Trailer Air Brake In-Line Filtration is designed to keep your trailer air brakes running smoothly. This quick-change cartridge features a bypass mode which ensures full airflow at all times, while the swinger gladhands swivel 180° that keeps air lines open and kink-free during use. The gladhand is automatically returned to the seal when unused, making it easy to maintain and use. With its durable construction and easy installation, this air brake in-line filtration is the perfect solution for keeping your trailer air brakes running smoothly and efficiently. FleetPride is your First Click in Heavy Duty®.