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Geberit Alpha 12cm Mid Level In-Wall Concealed Cistern for Wall Faced Toilet Pan, Top or Front Flush Buttons Available

SKU: UN-224.039.00.1
$458
button:
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Specifications

Features

This taller configuration of the Geberit Alpha 12cm Toilet Cistern is designed for installations requiring elevated flush access. With its 109 cm installation height and concealed tank design, it combines practicality with sleek modern aesthetics for wall-faced floor pans.

Optional Buttons:
Alpha01 Square Dual Flush Plate (Matt Black/Red Gold/Black Chrome/Brass-Coloured/White Alpine/Chrome/Matt Chrome)



Alpha25 Round Dual Flush Plate (White Alpine/Chrome/Matt Chrome) 



Geberit Alpha 12cm Mid Level In-Wall Concealed Cistern

    Product Information
    MODEL
    Main Product Code

    UN-224.039.00.1
    SPECIFICATION
    Product Type

    Geberit Alpha 12cm Mid Level In-Wall Concealed Cistern

    Cistern Operation Available in top or front actuation.
    Designed for use on wall faced toilet pans
    Features

    • High-Strength HDPE Tank – One-piece blow-moulded tank crafted from high-density polyethylene, offering durability and leak resistance.
    • Dual Flush Performance – 4.5L/3L flushing system rated WELS 4 Star for water efficiency.
    • Flush Button Support – Compatible with all Alpha mechanical, pneumatic, and electronic buttons.
    • Flexible Installation – Works with both S-trap and P-trap setups.
    • Heavy-Duty Design – Rated up to 400 kg (AS 1172.1 compliant), ensuring safety and reliability.
    • Easy Maintenance Access – Integrated protection cover box for tool-free servicing.
    • Standard Cavity Fit – Suits 90–110 mm wall cavities, simplifying in-wall installation planning.
    TECHNICAL INFORMATION
    Installation For undercounter installation.
    Suits 90–110 mm wall cavities.
    Optional Top or Front Flush Buttons Alpha01 Square Dual Flush Plate: 

    UN-115.055.14.1 (Matt Black)/
    UN-115.055.QA.1 (Red Gold)/
    UN-115.055.QC.1 (Black Chrome)/
    UN-115.055.QE.1 (Brass-Coloured)/
    UN-115.055.11.1 (White Alpine)/
    UN-115.055.21.1 (Chrome)/
    UN-115.055.46.1 (Matt Chrome)

    Alpha25 Round Dual Flush Plate:

    UN-115.040.11.5 (White Alpine)/
    UN-115.040.21.5 (Chrome)/
    UN-115.040.46.5 (Matt Chrome)
    SIZE & DIMENSIONS
    Overall Size Cistern: Please check the drawing for more details
    Flush Buttons: 213mm (W) × 142mm (H) × 16mm (D)
    CERTIFICATION
    WATERMARK
    		Approved
    WATERMARK Licence No
    		WMK004000
    WELS Approved
    WELS Licence No.
    		0021
    WELS Registration No.
    		L08207
    WELS Star Rating 4 Star
    WELS Water Consumption 4.6L per full flush/2.8L per half flush/ 3.2L per average flush
    PACKAGE CONTENTS
    Main Product 1 x In-Wall Cistern
    WARRANTY
    Warranty

    15 Years Cisterns

    Warranty Note Extent Warranty Plans provides you with an extended warranty period. Please contact us now or get more informations about the Warranty Extensions & Extra Services Upgrades at checkout page.
    REMINDER
    Notes *Product dimensions are approximate and can vary slightly due to manufacturing variances. Information provided in this data sheet is representative of the product available at the time and date of printing, 11/08/2018. Myhomeware reserves the right to vary specify cations at any time without notice.

    Buying Guide

    About Brand
    Geberit flush plate and wall-mounted toilet with vanity in a modern bathroom.

    Geberit is a European leader in sanitary technology, with over 150 years of expertise in developing advanced bathroom systems. Headquartered in Switzerland, the brand operates globally with a strong presence across Europe and beyond. Combining innovative engineering with integrated product solutions, Geberit delivers high-performance systems that support modern bathroom design and functionality.

    🏆

    European Industry Leader

    With over 150 years of history, Geberit is recognised as a leading authority in sanitary products and bathroom systems across Europe.

    ⚙️

    Lead Sanitary Technology

    Geberit specialises in innovative sanitary technology, delivering high-performance solutions that go beyond traditional bathroom fixtures.

    🌍

    Global Presence & Scale

    Operating in around 50 countries with 26 production facilities, Geberit combines global reach with strong local market expertise.

    🛠️

    Integrated Solutions

    From concealed systems to bathroom ceramics, Geberit offers coordinated solutions that enhance both functionality and design.

    Explore the Geberit collection

    Shop Geberit products →

    Browse the full Geberit range and use filters to find the right product, finish and style.

    Shipping

    Delivery timeframes, order processing, pickup and delivery charges — everything you need to know about getting your order to you.

    Last updated 12 August 2026

    Free limited-time free shipping to Greater Sydney & selected nearby regions — not combinable with other discounts
    0–3 days to process & dispatch in-stock orders
    2–7 days metro delivery after dispatch for in-stock items

    01 Shipping & freight

    • Shipping is calculated at checkout based on your delivery postcode and the items in your cart.
    • Tiles & flooring are quoted separately — freight is confirmed by our team before your order. Any free-shipping offer on tiles & flooring is a limited-time promotion shown on site and at checkout.
    • Large items to some regions are also quoted separately. Start a Live Chat (chat icon, bottom right) or contact our team and we'll confirm the freight cost before you order.
    • Any free-shipping offer is a limited-time promotion shown on site and at checkout. It cannot be combined with any other offer or discount. MyHomeware reserves the right to make the final decision.

    02 Standard delivery timeframes

    Destination Delivery time after dispatch
    Metro areas (all states) 2–7 business days
    Regional areas (all states) 7–15 business days
    Delivery timeframes are estimates calculated in business days from the date of dispatch, not from the date the order is placed, and apply to in-stock items. For backordered items, please see Section 07. Actual delivery times may vary depending on the courier and destination.

    03 Order processing & delays

    • You'll receive an Order Confirmation Email as soon as your order has been successfully placed.
    • Please allow 0–3 business days for order processing. In most cases, in-stock orders are dispatched within the first 24 hours.
    • Once your order has been dispatched, we'll email you the tracking information.

    Some delays may occur due to circumstances outside our control:

    • Public holidays, peak trading periods and major sale events may extend processing and delivery times. During Christmas and major sale periods, please allow extra time.
    • Exceptionally high order volumes may occasionally extend processing times.
    Remote areas: Courier networks may have delivery limitations for some remote postcodes. Where door-to-door delivery is unavailable, your parcel may be delivered to a local depot or Australia Post outlet, and you'll be notified when it is ready for collection.

    04 Additional delivery charges

    Additional charges beyond the standard delivery fee may apply where:

    • Stair or lift access is required — for example, where the delivery point is not directly accessible or goods need to be carried up stairs. Additional charges may apply due to the extra labour and time required.
    • The delivery location is difficult to access, or two or more people are required to complete the delivery safely.
    Any additional charges are assessed on a case-by-case basis, quoted and agreed with you before we proceed, and billed on a separate invoice. No surprises.

    05 Missed deliveries

    • If nobody is available at the delivery address during the agreed delivery window, a redelivery fee may apply.
    • Any additional charge will be communicated to you and agreed before a second delivery attempt is arranged.
    • Please ensure that you or an authorised person is available at the delivery address during the agreed delivery window.

    06 Pickup

    • We'll prepare your order as soon as possible and email you a notification with your booking number and collection details once it is ready.
    • Please wait until you receive this confirmation email before coming to collect your order.

    MyHomeware — North Rocks Showroom & Warehouse
    Unit E, 21 Loyalty Road, North Rocks NSW 2151

    Warehouse hours: Mon–Fri 9:00am–5:00pm · Sat 10:00am–4:00pm

    Pickup and exchange services are not available on Sundays.

    07 Out-of-stock & backordered items

    Stock levels can change quickly, and occasionally an item may show as available but sell out shortly after your order is placed. If this happens, we'll email you and provide the following three options:

    • Cancel backordered items We'll remove the unavailable items and dispatch the remaining in-stock items as soon as possible.
    • Cancel the whole order Choose immediate store credit or a refund.
    • Wait for replenishment We'll hold your order until the backordered items arrive.
    For backordered items, the 365-day return period begins on the date you receive the item — not the original purchase date.
    Returns & refunds Our full returns terms — including the 365-day return window, restocking fees and custom-order exclusions — are available on our dedicated policy page. Read the Returns & Refund Policy →

    Need help? Live Chat is the fastest way to reach us

    Due to high call volumes, phone waiting times may be longer than usual. Our Live Chat team is available for extended hours and can usually assist more quickly with delivery timeframes, freight quotes, stock checks and order updates.

    We reply to all enquiries within 1 business day.

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