Geberit Sigma8 Concealed Cistern 4.5 / 3L Dual-Flush Standard In-wall Cistern For Wall Faced Pan The Swiss-engineered Geberit Sigma8 concealed cistern combines high-density HDPE construction with a sleek slim design, offering leak-proof performance and water-saving dual flush. Engineered to meet Australian standards, this premium in-wall flush system is ideal for modern bathrooms and offers compatibility with a wide selection of Sigma flush plates. Key Features Flush Volume: 4.5 L full / 3 L half (adjustable) Installation Depth: 80 mm slim profile for standard 90 mm walls Material: Leak-proof, impact-resistant HDPE one-piece tank Compatibility: Supports S‑trap & P‑trap toilet pans Button Options: Works with over 30 Sigma mechanical, pneumatic, or electronic buttons Load Capacity: Up to 400 kg when paired with Duofix wall‑hung frames Operating Pressure: 0.1–1,000 kPa Condensation-Insulated tank prevents moisture build-up Dimensions Width: 410 mm Depth: 80 mm Height: Approx. 625–780 mm (varies by installation) Available As Cistern Only (with concealed frame) What’s Included Geberit Sigma8 Concealed Cistern Integrated angle-stop valve and flush bend Front-access service protection box and flush plate brackets Fixing materials for wall or drywall installation Warranty & Compliance 15‑Year Manufacturer’s Warranty on cistern tank 25‑Year Spare Parts Availability WELS Star Rating: 4‑Star dual-flush (Average 3.4 L/flush)
