Dual Flush Toilet Push Button 38/48/58mm | Tank Valve

Upgrade your toilet's flushing system with this Dual Flush Toilet Push Button — a smart, water-saving replacement button compatible with most standard dual-flush toilet tanks. Available in three sizes (38mm, 48mm, and 58mm thread diameter), it fits a wide range of ceramic and plastic toilet cisterns for a hassle-free upgrade or repair.

Made in Mainland China.

Why Choose This Dual Flush Button?

• Three Size Options: Choose from 38mm, 48mm, or 58mm thread diameter (button outer diameter: 50mm, 60mm, or 70mm respectively) to match your existing toilet tank opening.
• Dual-Button Water Efficiency: The large button delivers a full flush (approx. 6–8L) for complete cleaning, while the small button provides a half flush (approx. 3–4L) for lighter use — saving over 30% water compared to single-flush systems.
• Tool-Free Installation: The industry-standard interface simply hand-tightens into place — no professional plumber or special tools needed. Perfect for DIY beginners and experienced homeowners alike.
• Light-Touch Operation: Buttons press smoothly with clear tactile feedback and short travel, making them effortless to use for children and the elderly — no sticking or jamming.
• Leak-Proof & Durable Build: Constructed from food-grade ABS engineering plastic that resists heat, aging, rust, and cracking even after years of continuous water exposure. Silicone gaskets create a double-seal structure for reliable leak prevention.
• Built-In Filter: An integrated valve core filter screens out debris from the water supply, preventing clogs and ensuring smooth, consistent flushing every time.
• Wide Pressure Compatibility: Performs reliably across water pressures from 0.1–0.8MPa, suitable for most residential plumbing systems.
• 5+ Year Lifespan: Engineered for long-term durability — a cost-effective solution for toilet tank maintenance and repair.

Specifications

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For more information on water efficiency and conservation in the home, visit the U.S. EPA WaterSense – Toilets resource page.

Note: Actual colour may vary slightly from images due to monitor brightness and lighting conditions. Please allow minor measurement tolerances of ±1–2mm.

Frequently Asked Questions

Q: What sizes does this dual flush toilet push button come in?

A: This dual flush push button is available in three thread diameter sizes — 38mm, 48mm, and 58mm — with corresponding outer button diameters of 50mm, 60mm, and 70mm. Measure your existing toilet tank hole before ordering to ensure the correct fit.

Q: Is this flush button compatible with my toilet cistern?

A: Yes — this button uses the industry-standard thread interface and is widely compatible with most ceramic and plastic dual-flush toilet tanks. It works across a broad water pressure range of 0.1–0.8MPa, making it suitable for the majority of residential plumbing setups.

Q: How much water does this dual flush button save?

A: The dual-button design uses approximately 3–4 litres for a half flush and 6–8 litres for a full flush, saving over 30% water per use compared to traditional single-flush toilets. Over time, this can meaningfully reduce your household water bills while being kinder to the environment.

Q: Do I need a plumber to install this flush button?

A: No professional help is needed. The button simply hand-tightens into the existing cistern opening — no special tools required. Most users complete installation in just a few minutes, making it an ideal DIY bathroom repair.