How Does a Toilet Work? A Simple Guide to Flush Mechanics
How does a toilet work? Simple guide to flush mechanics: cistern, fill valve, flapper, siphon effect and common faults. Easy maintenance tips to keep your toilet flushing properly.
R&T Round In-Wall Toilet Button
A sophisticated flush access plate designed for front actuation on R&T in-wall concealed cistern systems. With its large round profile and ultra-slim 8mm depth, the MERCIO Access Plate makes a bold design statement while keeping your bathroom wall clean and uncluttered. Available in five premium finishes to suit any modern bathroom aesthetic.

Ultra-Slim 8mm Profile
At just 8mm deep, this access plate sits flush against the wall for a seamless, minimalist finish. The large round format — 245 × 165mm — creates a confident visual centrepiece without overwhelming the wall space.
The slim profile is particularly well suited to feature walls and tiled surfaces where a low-profile button helps maintain a clean, uninterrupted aesthetic.

Five Colours, Two Materials
Choose from Chrome or White in durable ABS plastic, or elevate your bathroom with Brushed Gold, Brushed Nickel, or Gunmetal Grey in premium stainless steel construction.
Whether your bathroom leans contemporary, industrial, or spa-inspired, there is a finish to complement your tapware and hardware selections.

Dual Flush Front Actuation
The two-button dual flush system gives users control over water usage with every flush — a practical feature for everyday use and water-conscious households.
Front actuation makes this button compatible with standard R&T in-wall concealed cistern frames, and installation is straightforward for licensed plumbers.

| MODEL | |
|---|---|
| Main Product Code | UN-IWC-BR880-BG / UN-IWC-BR880-CH / UN-IWC-BR880-BN / UN-IWC-BR880-GM / UN-IWC-BR880-WH |
| MATERIAL & FINISH | |
| Material |
Chrome / White (UN-IWC-BR880-CH / UN-IWC-BR880-WH): ABS Plastic Brushed Gold / Brushed Nickel / Gunmetal Grey (UN-IWC-BR880-BG / UN-IWC-BR880-BN / UN-IWC-BR880-GM): Stainless Steel |
| Shape | Round |
| Available Colours | Brushed Gold / Chrome / Brushed Nickel / Gunmetal Grey / White |
| TECHNICAL INFORMATION | |
| Actuation Type | Front actuation |
| Flush Type | Dual flush with round buttons |
| Compatible With | R&T in-wall concealed cistern systems |
| SIZE & DIMENSIONS | |
| Overall Size | 245 x 165 x 8mm |
| PACKAGE CONTENTS | |
| Main Product | 1 × Toilet Button |
| FEATURES | |
| Feature 1 | Large Round Design -- Bold, statement-making aesthetic that elevates any modern bathroom. |
| Feature 2 | Premium Finish Options -- Available in 5 finishes to complement a wide range of bathroom styles. |
| Feature 3 | Slim Profile -- Ultra-thin 8mm depth for a sleek, flush-mounted appearance. |
| Feature 4 | Easy Installation -- Designed for straightforward front-access installation on R&T concealed cistern systems. |
| WARRANTY | |
| 1 Year Warranty | 1 year warranty on product or parts replacement |
| Warranty Note | Extent Warranty Plans provides you with an extended warranty period. Please contact us now or get more information about the Warranty Extensions & Extra Services Upgrades at checkout page. |
🎨 How to Choose Your Finish
The R&T Round In-Wall Toilet Button is available in five premium finishes — two in ABS plastic and three in stainless steel. All finishes share identical dimensions (245×165×8mm) and dual flush functionality. Choose based on your bathroom hardware and tapware colour.
Tip: Match your toilet button finish to your tapware, towel rails, and other bathroom hardware for a cohesive look.
Chrome
Material: ABS Plastic | SKU: UN-IWC-BR880-CH
White
Material: ABS Plastic | SKU: UN-IWC-BR880-WH
Brushed Gold
Material: Stainless Steel | SKU: UN-IWC-BR880-BG
Brushed Nickel
Material: Stainless Steel | SKU: UN-IWC-BR880-BN
Gunmetal Grey
Material: Stainless Steel | SKU: UN-IWC-BR880-GM
🧭 Quick Selection Guide
| Your Bathroom Style / Tapware Colour | Recommended Finish |
|---|---|
| Chrome or polished silver tapware | Chrome |
| All-white or minimalist bathroom | White |
| Brushed gold or brass tapware | Brushed Gold |
| Brushed nickel or matte silver tapware | Brushed Nickel |
| Matt black, dark, or industrial style | Gunmetal Grey |
⚠️ Important Notes
Mercio, proudly originating from Australia, offers premium, stylish bathroom products that combine innovative design and ergonomic solutions. With a portfolio of over 1,000 carefully crafted products, Mercio elevates everyday bathroom experiences, prioritizing customer service and long-term relationships. The brand blends aesthetics, functionality, and durability to meet modern lifestyle needs, offering solutions that suit all design preferences and spaces.
Stylish Design
Mercio focuses on innovative design and ergonomic solutions, offering stylish products that elevate bathroom experiences while providing comfort.
Ergonomic Solutions
Mercio constantly explores innovative design concepts, offering ergonomic solutions that enhance bathroom comfort and functionality.
Diverse Product Range
With over 1,000 carefully crafted products, Mercio delivers functional, efficient, and stylish solutions tailored to modern bathroom needs.
Generous Warranty
With generous warranty periods, Mercio underscores its confidence in the quality of its products, offering peace of mind for customers.
Explore the Mercio collection
Shop Mercio products →Browse the full Mercio range and use filters to find the right product, finish and style.
Delivery timeframes, order processing, pickup and delivery charges — everything you need to know about getting your order to you.
Last updated 5 November 2026
| Destination | Delivery time after dispatch |
|---|---|
| Metro areas (all states) | 2–7 business days |
| Regional areas (all states) | 7–15 business days |
Some delays may occur due to circumstances outside our control:
Additional charges beyond the standard delivery fee may apply where:
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