The Watson & Chalin 300 psi Air Pressure Regulator is a high-quality product designed to regulate air pressure in your system with precision and ease. With a maximum inlet pressure of 300 psi, this regulator is capable of handling even the most demanding applications. Featuring unbalanced poppet standard and a solid control piston with a lip seal, this regulator is built to last and provide reliable performance. The non-rising adjusting knob allows for easy and precise adjustments, while the easily serviced design ensures that maintenance is a breeze. The Watson & Chalin 300 psi Air Pressure Regulator is available in a variety of port sizes (NPT), including an inlet of 1-1/4" and an outlet of 3-1/4". Whether you're looking to regulate air pressure in a small or large system, this regulator is the perfect choice for your needs. Invest in the Watson & Chalin 300 psi Air Pressure Regulator today and experience the benefits of reliable, precise air pressure regulation in your system. FleetPride is your First Click in Heavy Duty®.