The Fluidmaster K-400A-023 Mansfield Toilet Fill Valve and Flush Valve Seal Repair Kit is designed specifically to repair your Mansfield brand toilet. Featuring parts made to improve the fill and flush performance of both Mansfield #210 toilets and Mansfield #211 toilets. Quickly fix leaks and solve slow fill and running toilet problems with this toilet repair kit. Including the 400A toilet fill valve, a universal anti-siphon design for quicker refill and long lasting performance. Also showcasing Mansfield toilet parts, such as the 510M Mansfield flush valve seal replacement and a Mansfield flush lever replacement. Key features include: Tank water level adjustment dial, adjustable fill valve height, durable hard water resistant seals and a stylish chrome finish toilet tank lever. Upgrade your Mansfield toilet fast with the Fluidmaster Mansfield Toilet Repair Kit.