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Which Fill Valve to Choose?

Fluidmaster, a leading brand in toilet tank components, proudly holds the top position in the global market. Our products ensure reliable and easy-to-use toilet flushing systems in over 90 countries, serving more than 80% of the global population. With an annual production exceeding 40 million valves—over one valve per second—we are committed to quality, innovation, and sustainability.

Fluidmaster valves are the preferred choice for homeowners, professional plumbers, and sanitary ware manufacturers alike. They stand out for their high performance, ease of installation, and compatibility with various toilet systems. In partnership with over 60 leading ceramic manufacturers worldwide, we deliver superior quality and user satisfaction on a global scale.

Guide to Choosing a Fill Valve

When selecting a fill valve, it’s essential to choose one that is universal, meaning it can adapt to a wide range of toilet models regardless of the manufacturer. Fluidmaster’s universal fill valves offer simple installation without requiring a specific model, making replacement quick and easy for users.

Key Features to Consider:

  1. Compatibility with the toilet tank: The valve’s efficiency depends on how well it fits the toilet tank. Ensure the valve matches the tank’s dimensions, connections, and design.
  2. Water level adjustment: Universal valves enable precise water level adjustments, promoting water conservation. With this feature, you can reduce water usage and support environmental sustainability.
  3. Material quality: Fluidmaster valves are made of durable, high-quality materials that withstand long-term exposure to water and contaminants like limescale, reducing the frequency of replacements and ensuring longevity.
  4. Ease of installation: Designed for user-friendly setup, Fluidmaster valves allow for quick and cost-effective installation, reducing maintenance expenses.
  5. Quiet operation: Loud valves can be disruptive. Our valves are engineered for quiet performance, ensuring smooth and silent operation.


Overview of Top Models for Different Users

Fluidmaster offers a wide range of valves suitable for various toilet systems. Here’s an overview of three of the most popular fill valves, known for their innovative features and exceptional quality.

1. HDV Valve – Durable and Adaptable for All Users

The HDV valve is built for demanding conditions, withstanding high pressure, hard water, and contaminants. It is an excellent choice for both concealed and exposed cisterns requiring reliability in challenging environments. Initially developed in Postojna in 1989 to meet European market needs, the second improved version was introduced in 2005, offering enhanced durability and performance.

Key Features of the HDV Model:

  • Brass G 3/8 connection for long-lasting durability.
  • Reliable operation even in water with impurities.
  • Exceptionally quiet performance for uninterrupted use.
  • Fast filling and precise water level adjustment.

The HDV valve’s robustness makes it an ideal choice for households and commercial spaces needing high-performance, durable solutions.

2. 747 Valve – A Universal Solution for Concealed Cisterns

The Fluidmaster 747 model is specifically designed for concealed cisterns. Its compact design allows installation in tight spaces while maintaining efficient and quiet operation.

Key Features of the 747 Model:

  • Adaptable for high and low water pressure, ensuring optimal performance in various plumbing systems.
  • Compact design suitable for different cistern types.
  • Ultra-quiet operation.
  • Easy installation with precise water control through the included adapter.

Affordable and versatile, the Fluidmaster 747 is a popular choice for those seeking a high-quality, universally compatible fill valve.

3. 400 Valve – The World’s Best-Selling Fill Valve

The Fluidmaster 400 is a bottom-entry valve that offers fast and efficient operation with adjustable height. This valve is compatible with all types of exposed and ceramic cisterns and works well with different water pressure levels. As one of the longest-standing products in our portfolio, the 400 valve has been in production since Fluidmaster’s founding in 1957.

Key Features of the Fluidmaster 400 Model:

  • Adaptability for high and low water pressure.
  • Fast filling and easy water level adjustment.
  • Quiet operation and long-term reliability.
  • Adjustable height for compatibility with various cistern designs.

Proven design, trusted quality, and versatility have made the 400 valve a reliable choice for millions of users worldwide.

Fluidmaster: Ensuring Reliability and Versatility with Premium Valves

Fluidmaster fill valves are the go-to solution for those seeking durability, quiet operation, and adaptability. With over 60 years of experience and more than 40 million valves produced annually, Fluidmaster delivers the highest quality and reliability on the market. Our valves are rigorously tested to meet the highest standards, offering top-notch products for a variety of toilet systems.

For more details about Fluidmaster valves, check out the presentation video from our U.S. headquarters. The video demonstrates how our products work and why they are among the leading solutions on the market.


Choose Fluidmaster for a long-lasting, smart solution, ensuring optimal performance for your bathroom system that will meet your needs for years to come.