The Air Valve Replacement Part for Train Horn is a practical and essential component made of chrome plated steel. Designed to replace worn-out valves, this product ensures optimal performance and longevity for your train horn. With its durable construction, it guarantees reliable functionality and seamless operation. Sold individually, this replacement part offers convenience and affordability, making it an ideal choice for train horn maintenance. Upgrade your train horn system effortlessly with this high-quality air valve replacement part.