Best BM

Best BM Geberit Sigma 20 Round Dual Flush Button Brushed Gunmetal

SKU: BESTBM6025
Sale price$850.00
Order today — dispatches the next business day
Followed by 18,000+ bathroom renovators & trade pros — @burdensbathrooms

Geberit Sigma 20 – Brushed Gunmetal

The Geberit Sigma 20 in Brushed Gunmetal blends sleek design with robust performance, making it a standout choice for modern bathrooms. Crafted from premium stainless steel and finished with a resilient PVD coating, it ensures both durability and long-lasting style.

Specifically designed for Geberit in-wall cisterns, the Sigma 20 offers quiet, sound-dampened operation and features quick, tool-free adjustment for hassle-free installation. Its brushed gunmetal finish brings a sophisticated, contemporary edge to your bathroom design.

Features & Benefits:

  • Refined brushed gunmetal finish for a modern, premium look
  • PVD colour coated in Australia for lasting durability
  • Stainless steel construction for strength and reliability
  • Sound-dampened actuator rods for quieter flushing
  • Easy, tool-free adjustment and installation
  • Compatible with Geberit Sigma 8 (for floor pans) and Duofix Sigma 8 (for wall-hung pans) concealed cisterns
  • Genuine GEBERIT product – designed in Switzerland, made in Germany
  • Warranty: 3 years replacement (parts or product), 1 year labour

We aim to dispatch all orders within 1 business day

Free pickup at any Burdens storeFree
Local Burdens delivery$55 flat
Courier (Small / Standard / Large)$15–$100

*Large items may be delivered to a local depot if required.

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15 Stores across Victoria

Free in store pickup + Local delivery options

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Decades of industry know-how and real-world experience.

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Head over to our Frequently Asked Questions (FAQs) page for more details on ordering, delivery, installation, and warranties — or reach out to our team for personalised help

Frequently Asked Questions
Local Delivery Available

Local Delivery Available

Flat rate Local Burdens Delivery on ANY order, large or small, direct to your door.

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Courier and Post Shipping Available

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Free In-store Collection

Free In-store Collection

Free in-store collection available at any Burdens Bathrooms location

Free In-store Collection

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