The Universal Toilet Fill Valve is the top-selling and most recognized toilet fill valve worldwide. Offering quiet refill rates it is also a top solution to fix noisy toilets. Now featuring an enlarged easier to turn adjustment dial, and a pre-installed shank washer for an even faster install. The universal design ensures it will fit most toilet models, with an adjustable EZ-twist height from 9 inch to 14 inch. It offers quick refill rates and replaces ballcocks and other toilet fill valves. Trusted and proven the fill valve is built to last from corrosion-resistant materials for a long lifespan. An anti-siphon design, that won't contaminate the fresh water supply and meets code standards.