Description
Product Overview
The Hidnvefen Mansfield Flush Valve Seal is engineered for reliable performance in residential toilets. Crafted from high‑grade silicone, the seal offers superior flexibility and resistance to chemicals compared with standard rubber. Each pack includes three red‑colored seals, each measuring 3.13 x 3.13 x 0.08 inches and weighing just 0.634 ounces, making them lightweight yet robust. The 2‑inch inlet and outlet compression fittings ensure a tight, leak‑free connection without the need for additional tools.
Usage
Designed specifically for Mansfield #210 and #211 flush valves, this seal fits seamlessly into existing toilet assemblies. Ideal for DIY homeowners, property managers, and maintenance professionals, the seal can be installed in minutes without removing the tank lid. It works in any standard bathroom environment, helping to eliminate constant running water, lower utility costs, and prevent water damage.

Why Choose Us
Hidnvefen combines precision engineering with premium materials to deliver a product that outlasts generic alternatives. Our silicone formulation provides twice the toughness of traditional rubber, resisting wear, mineral buildup, and temperature fluctuations. Each seal undergoes rigorous quality testing and comes with responsive Amazon support, including a step‑by‑step installation video upon request.
Key Features
- Premium silicone construction for long‑lasting durability
- 2‑inch compression inlet and outlet for a secure, tool‑free fit
- Red color for easy identification and visual confirmation of proper installation
- Compatible with Mansfield #210 and #211 flush valve models
- Pack of three seals to replace multiple flappers or keep spares on hand
FAQ
Will this seal fit other toilet brands?
The seal is specifically dimensioned for Mansfield #210 and #211 flush valves. While it may fit some similar designs, we recommend using the exact match for optimal performance.
Do I need any tools to install the seal?
No special tools are required. The compression connections snap into place with hand pressure, allowing a quick installation in under five minutes.
How does silicone compare to rubber?
Silicone offers greater flexibility, higher temperature resistance, and superior resistance to chemicals and mineral deposits, resulting in a longer service life than standard rubber seals.
Can I install the seal myself if I’m not handy?
Absolutely. The design is user‑friendly, and we provide a free installation video upon request to guide you through each step.
What is the warranty on this product?
Hidnvefen provides a one‑year limited warranty covering manufacturing defects. Contact our support team for any issues within the warranty period.




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