Fluidmaster K-400A-023 Mansfield Toilet Fill Valve & Flush Valve Seal Repair Kit

Overview

Upgrade your Mansfield toilet with a targeted, parts-based repair kit designed to restore steady fills and reliable flushes. The Fluidmaster K-400A-023 Mansfield Toilet Fill Valve and Flush Valve Seal Repair Kit focuses on practical improvements for Mansfield models, helping you address common wear points without replacing the entire unit. Built to support both Mansfield #210 and #211 tanks, this kit pairs durable components with thoughtful design to deliver consistent, predictable operation in daily use.

The kit’s core parts are engineered for quick service and durable performance. A universal fill valve with anti-siphon design refills after each flush, while a dedicated flush valve seal helps maintain the seal integrity across multiple cycles. A chrome finish tank lever adds a stylish touch to the tank’s exterior, while the included seals resist mineral buildup in hard water environments. With adjustable height and a tank water level dial, you can tailor the setup to your specific tank geometry and preferences, aiming for a balanced flush and steady refill that fits your household needs.

What’s inside and how it helps

• 400A universal toilet fill valve
• Mansfield specialty flush valve seal
• Mansfield chrome finish tank lever
• EZ-Twist height adjust from 9 in. to 14 in.
• Corrosion-resistant seals for long-lasting performance
• Five-year warranty on kit components

Designed for Mansfield 210 and 211

Designed with Mansfield 210 and 211 compatibility in mind, the kit is straightforward to install for both DIY enthusiasts and tradespeople. The parts map to common tank layouts, reducing guesswork and downtime when replacing worn components. The result can be a smoother refill cycle and a more consistent flush rhythm, all without the need for a full toilet replacement.

Adjustability and reliability

• Tank water level adjustment dial helps fine-tune the fill height
• EZ-Twist height adjustment facilitates compatibility across a range of tank heights
• Hard water resistant seals support longer service life

Quality you can rely on

The kit combines durable materials, a polished chrome lever, and components designed to withstand everyday bathroom use. This practical upgrade focuses on dependable operation and easier maintenance, offering a potential improvement path for Mansfield toilets that show signs of wear. Consider it as a measured option to restore efficiency and reduce minor leaks or inconsistencies in operation.

Note that results depend on your specific toilet condition and installation. The description highlights the features and compatibility provided by the product data and aims to help you make an informed decision.