Cistern Filling Float Valve | G3/8 & G1/2 Brass Inlet Valve

Upgrade your toilet cistern with this reliable Cistern Filling Float Valve — a complete replacement kit designed for fast, tool-free installation in both plastic and porcelain toilet tanks. Built with durable brass connectors and adjustable water volume control, this valve helps you save water and cut costs without sacrificing performance.

Made in Mainland China.

Key Features

• Robust Brass Connectors: High-quality copper fittings deliver exceptional durability and resistance to mechanical stress, minimising the risk of leaks in your water system for long-term, worry-free performance.
• Dual-Size Compatibility: Includes a G3/8" brass connector that converts seamlessly to G1/2", ensuring compatibility with most standard toilet cisterns and water tanks across a wide variety of setups.
• Adjustable Water Volume: The innovative float mechanism allows you to fine-tune the flush water level, giving you precise control over water usage to help reduce your water bill without compromising flush efficiency.
• Universal Fit: Suitable for plastic and porcelain toilet cisterns and compatible with most major toilet brands — a truly versatile replacement solution.
• Quick & Easy Installation: User-friendly design means most homeowners can complete the installation in minutes — no prior plumbing experience required.

Specifications

• Product Name: Cistern Filling Float Valve
• Material: Plastic body with Brass connectors
• Connection Size: G3/8" (with G1/2" adaptor included)
• Colour: White

Package Contents

• 1 × Cistern Filling Float Valve (with brass connectors)

Please Note: Actual colour may vary slightly from screen images due to monitor brightness and light conditions. Please allow for minor measurement tolerances.

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For general guidance on water-efficient plumbing and toilet fixtures, visit the EPA WaterSense Toilets resource to learn about water-saving standards and best practices.

Frequently Asked Questions

Q: Is this cistern filling valve compatible with my toilet brand?

A: Yes — this cistern filling float valve is designed for universal compatibility, fitting most plastic and porcelain toilet cisterns from a wide range of brands. The G3/8" to G1/2" brass adaptor ensures it works with the majority of standard toilet water tank setups.

Q: Can I install this toilet inlet valve myself without a plumber?

A: Absolutely. The valve is engineered for quick, DIY-friendly installation. Most homeowners can complete the swap in just a few minutes using basic tools, with no specialist plumbing knowledge required.

Q: How do I adjust the water level in my cistern with this valve?

A: The float arm or adjustment mechanism on this cistern filling valve allows you to raise or lower the water cut-off level inside your toilet tank. Simply turn the adjustment screw or reposition the float to your desired water level and test with a flush cycle.

Q: Is this valve durable enough for daily use?

A: Yes. The brass connector fittings are built to withstand the mechanical stress of constant water pressure and daily use, significantly reducing the chance of leaks or premature wear compared to all-plastic alternatives.