Toilet button for one-piece toilet round tank, a 38mm diameter double push button flush control accessory in ABS plastic for ground drainage systems, replacement part for toilet flush mechanism.
38mm Double Push Button Replacement for One-Piece Round Toilet Tanks

This toilet button accessory serves as a direct replacement part for the flush mechanism on one-piece toilets featuring a round tank. Designed for ground drainage systems, the 38mm diameter dual-button unit operates via a simple hand press to initiate the flushing cycle. Constructed from ABS plastic, it provides a durable and practical housing that matches the functional requirements of a standard toilet flush control. Supplied as a single unit, it is intended to replace an existing button that may be worn, broken, or malfunctioning, offering a straightforward solution to restore proper toilet operation without requiring a full system replacement.
Features and Construction

The product is defined by its specific dimensions, material choice, and intended compatibility, which together form its core utility as a replacement part.
Material and Build
The flush button is made from ABS plastic, a commonly used thermoplastic known for its strength, rigidity, and resistance to impacts. This material choice makes the button housing robust enough for daily manual operation and resistant to the humid environment of a bathroom. The construction focuses on providing a reliable mechanical interface between the user's press and the toilet's flush valve, without incorporating extraneous features.
Size and Practical Fit
The key specification is the 38mm diameter, which dictates the size of the mounting hole required in the toilet tank lid or panel. This measurement ensures the button will fit correctly into the aperture designed for a standard-sized control. The dual-button format is integrated within this 38mm circle, providing the two-stage flush control common to many modern water-saving toilets. Its design is specifically for one-piece toilets with a round tank profile, confirming its niche application.
Uses and Placement

This accessory has a clear and singular primary use case, with its value derived from restoring function to an existing appliance.
Event or Professional Use
For maintenance professionals, facility managers, or landlords, this part is a standard consumable for toilet repair and upkeep. It allows for a quick and cost-effective fix for a common point of failure—the flush button—in residential, commercial, or public washrooms equipped with compatible one-piece toilets. Keeping such specific spares on hand minimises downtime and avoids the need for more extensive plumbing work.
Everyday Home Use
For the homeowner, this product addresses the practical need to repair a toilet where the flush button has become stiff, unresponsive, or physically broken. Installing this replacement part can restore full flush functionality, ensuring the toilet operates efficiently and hygienically. It provides a DIY-friendly solution that typically requires no specialist tools, just careful following of the toilet's existing setup or manufacturer guidelines.
Benefits and Buying Value

The value proposition centres on practicality, specificity, and the extension of an existing toilet's usable life through a simple component swap.
Reuse and Low Maintenance
By replacing only the faulty button, the entire toilet tank and flushing mechanism can continue in use, supporting a repair-over-replace ethos. The ABS plastic construction requires minimal ongoing care—simple wiping clean is sufficient—contributing to low long-term maintenance. This approach is often more economical and less wasteful than sourcing a completely new flush system or toilet.
Why Choose This Product
Select this button if you have verified that your toilet is a one-piece model with a round tank and a ground drainage system requiring a 38mm control. Its value lies in its exact specification match, which is critical for a successful installation and operation. It offers a functional, no-frills solution that directly addresses a clear mechanical need, backed by the stated material and dimensions from the product data.
