Upgrade your toilet’s performance with the Fluidmaster Pro Series Anti-Siphon Adjustable Fill Valve. Built for reliability, quiet operation, and easy installation, this professional-grade valve is perfect for contractors, plumbers, and homeowners looking for a long-lasting, dependable solution. Key Features: Heavy-duty brass shank provides superior strength and corrosion resistance. Unlike plastic shanks, this brass connection won’t crack or strip, ensuring a more secure and leak-resistant fit. Adjustable height range from 9 inch to 14 inch for a universal fit across most toilet tanks, both one- and two-piece. Anti-siphon design prevents contaminated water from flowing back into the clean supply line, meeting plumbing code requirements and protecting water safety. Ultra-quiet refill performance minimizes noise and water hammer, ideal for both residential and commercial bathrooms. Easy-turn water-level adjustment dial allows fast, precise water-level control without tools. Universal compatibility works with nearly all major toilet brands, reducing the need to stock multiple valve types.