HornBlasters 1/2" Manual Train Horn Valve Introducing the HornBlasters 1/2" Manual Train Horn Valve—the missing piece to perfecting your locomotive horn experience. Want to feather your blast like a true conductor? Look no further. With this precision-engineered valve, you have complete control over your train horn sound. While electric valves can only be fully open or fully closed, our 1/2" manual valve gives you the power to fine-tune your airflow, allowing you to adjust the pressure release and create that iconic classic train horn sound you've been seeking. Take your auditory experience to the next level with the utmost precision and control. Crafted with high-quality brass and metal alloy, this manual valve is built to last. We've ensured that you'll enjoy years of reliable blasting performance without compromise. Trust in the durability and longevity of the HornBlasters 1/2" Manual Train Horn Valve. With the HornBlasters 1/2" Manual Train Horn Valve, you're in the conductor's seat, orchestrating every blast and capturing the essence of that classic train horn sound. Get ready to unleash the full potential of your train horn system with precision control at your fingertips. HornBlasters 1/2" Manual Train Horn Valve Introducing the HornBlasters 1/2" Manual Train Horn Valve—the missing piece to perfecting your locomotive horn experience. Want to feather your blast like a true conductor? Look no further. With this precision-engineered valve, you have complete control over your train horn sound. While electric valves can only be fully open or fully closed, our 1/2" manual valve gives you the power to fine-tune your airflow, allowing you to adjust the pressure release and create that iconic classic train horn sound you've been seeking. Take your auditory experience to the next level with the utmost precision and control. Crafted with high-quality brass and metal alloy, this manual valve is built to last. We've ensured that you'll enjoy years of reliable blasting performance without compromise. Trust in the durability and longevity of the HornBlasters 1/2" Manual Train Horn Valve. With the HornBlasters 1/2" Manual Train Horn Valve, you're in the conductor's seat, orchestrating every blast and capturing the essence of that classic train horn sound. Get ready to unleash the full potential of your train horn system with precision control at your fingertips. Honk your horns just like a real locomotive! Manually control your air-flow HornBlasters manual hand valve was made to emulate the real thing. Our valve was designed around a genuine locomotive valve to offer similar performance at a fraction of the cost. This valve allows you to fully control how much air flows out to your horns by simply moving the handle up/down. No electricity is required. Built to Last Each valve is loaded with a heavy-duty stainless steel spring to ensure proper actuation every time. No service is required for this valve. It is meant to last the lifetime of your vehicle. Pairs up Perfectly with your Nathan Airchime or Leslie Horns This valve was designed to be used with horns such as the Nathan Airchime or Leslie locomotive horns. With this valve feather the sound of these horns and sound like a real train! Manual Valve Specifications Thread Size 1/2" NPT Mounting Holes 3/8" Length: 9" (228.6 mm) Width: 1.88" (47.75 mm) Height: 6" (152.4 mm) Flow Rate 70 SCFM Flow Rate