Toilet Cisterns (25 products) In-wall, concealed and frameless finishes for renos—ideal as a toilet water tank upgrade. Key Benefits Purchase Confidence Replacing a cistern toilet, toilet bowl and cistern, or cistern of toilet can be tricky when parts don’t match. Whether it’s a toilet cistern that’s cracked or leaking, flexible valve compatibility helps you replace a toilet bowl cistern, a toilet bowl and tank, or refresh a toilet water tank without the guesswork. Lavatory cisterns and lavatory tank options are also available for older setups. Read More Before you buy, check your outlet location (in-wall or exposed), flush type (single or dual) and the valve you need, then match it to your toilet tank and cistern. Matching the right toilet and cistern ensures a reliable flush every time. Most replacements only need basic tools and a careful seal check. If you're unsure, our team can guide compatibility and parts selection, plus Price Beat Policy and 365-Day Returns. 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const description = tabDescription.querySelector('div').querySelector('p'); if (description) { if (description.classList.contains('clamped')) { description.classList.remove('clamped'); description.classList.add('expanded'); this.textContent = 'Read Less'; } else { description.classList.remove('expanded'); description.classList.add('clamped'); this.textContent = 'Read More'; } } }); }); Buy Toilet Cisterns Online FilterFilter & Sort View as List Grid Geberit Frameless Inwall Concealed Cistern Sigma8 Push Button Available For Wall Floor Faced Pans Geberit | SKU: Sigma8 In stock From $308 Unit price / Unavailable Add to cart Add to cart View details Geberit Top Inlet Valve For Toilet Poseidon | SKU: PD-GB002 Low stock From $52 Unit price / Unavailable Add to cart Add to cart View details R&T Frameless Inwall Concealed Cistern for Wall Floor Toilet Pan Push Button Available R&T | SKU: MIC-G30032 In stock From $165 Unit price / Unavailable Add to cart Add to cart View details Geberit Outlet Valve For Toilet Poseidon | SKU: PD-GB001 From $52 Unit price / Unavailable Add to cart Add to cart View details Geberit Framed Inwall Concealed Cistern Sigma8-F Push Button Available For Wall Hung Pans Geberit | SKU: Sigma8-F In stock From $750 Unit price / Unavailable Add to cart Add to cart View details Geberit Bottom Inlet Valve For Toilet Poseidon | SKU: PD-GB003 From $52 Unit price / Unavailable Add to cart Add to cart View details Geberit Alpha 12cm Low Level In-Wall Concealed Cistern for Wall Faced Toilet Pan, Top or Front Flush Buttons Available Geberit | SKU: LK-Alpha12 Low stock From $458 Unit price / Unavailable Add to cart Add to cart View details Macho Toilet Cistern Shell Only For Back to Wall Toilet Suites Macho | SKU: CIS-2376 From $100 Unit price / Unavailable Choose options Choose options View details Top Inlet Valve with 460mm PVC Flexible Hose For Toilet Unicasa | SKU: Top Inlet Set+UN-PA-FH From $60 Unit price / Unavailable Add to cart Add to cart View details R&T Frameless Low Level In-wall Cistern For Wall Faced Toilet Pan Top or Front Flush Buttons Available R&T | SKU: CE-G3005 Low stock From $280 Unit price / Unavailable Add to cart Add to cart View details R&T Framed Inwall Concealed Cistern for Wall Hung Toilet Pan Push Button Available R&T | SKU: LK-G30031 Low stock From $436 Unit price / Unavailable Add to cart Add to cart View details Back Inlet Valve For Toilet Poseidon | SKU: PD-RT003 From $44 Unit price / Unavailable Add to cart Add to cart View details Bottom Inlet Valve For Toilet Poseidon | SKU: PD-RT002 From $34 Unit price / Unavailable Add to cart Add to cart View details Outlet Valve For Toilet Poseidon | SKU: PD-RT001 From $34 Unit price / Unavailable Add to cart Add to cart View details Geberit Alpha 12cm Mid Level In-Wall Concealed Cistern for Wall Faced Toilet Pan, Top or Front Flush Buttons Available Geberit | SKU: UN-224.039.00.1 Low stock From $458 Unit price / Unavailable Add to cart Add to cart View details Kohler Pneumatic In-Wall Cistern 150mm without Frame Low Height for Wall Faced Toilet, Flush Buttons Available Kohler | SKU: KH-78074A-PNE-NA From $331 Unit price / Unavailable Add to cart Add to cart View details R&T Universal Inlet Valve For Toilets R&T | SKU: RT-INLET-UNI In stock From $100 Unit price / Unavailable Add to cart Add to cart View details Geberit Alpha 12cm Framed In-Wall Concealed Cistern with Duofix for Wall Hung Toilet Pan, Top or Front Flush Buttons Available Geberit | SKU: LK-Alpha12-F Low stock From $818 Unit price / Unavailable Add to cart Add to cart View details Kohler Pneumatic In-Wall Cistern 150mm with Frame Low Height for Wall Hung Toilet, Flush Buttons Available Kohler | SKU: KH-20007A-PNE-NA From $526 Unit price / Unavailable Add to cart Add to cart View details Kohler Pneumatic In-Wall Cistern 88mm with Frame for Wall Hung Toilet, Flush Buttons Available Kohler | SKU: KH-20010A-PNE-NA From $526 Unit price / Unavailable Add to cart Add to cart View details Kohler Pneumatic In-Wall Cistern 90mm without Frame for Wall Faced Toilet, Flush Buttons Available Kohler | SKU: KH-78077A-PNE-NA From $331 Unit price / Unavailable Add to cart Add to cart View details Kohler Mechanical In-Wall Cistern 88mm with Frame for Wall Hung Toilet, Flush Buttons Available Kohler | SKU: KH-4179A-NA From $558 Unit price / Unavailable Add to cart Add to cart View details Kohler Mechanical In-Wall Cistern 88mm without Frame for Wall Faced Toilet, Flush Buttons Available Kohler | SKU: KH-10611A-NA From $350 Unit price / Unavailable Add to cart Add to cart View details Kohler Framed In-Wall Cistern and Carrier System for Veil Intelligent Toilet Pans Kohler | SKU: KH-18647A-NA From $1,283 Unit price / Unavailable Add to cart Add to cart View details Showing 24 of 25 Show more How to choose the Right Toilet Cisterns Product Buying Guides What Is a Toilet Cistern and How It Works By Kavya Subramanian Learn what a toilet cistern is and how it works. This simple guide explains the main components, common problems, and easy maintenance tips to stop leaks, save water and keep... 4 mins read 25 March, 2026 Product Buying Guides Parts of a Toilet Cistern: How They Work and How to Fix Common Faults By Kate Morrison Parts of a toilet cistern explained: fill valve, flush valve, float and how they work. Diagnose common faults and fix them with simple Australian DIY repair tips. 7 mins read 07 May, 2026 Next Previous Toilet Cisterns FAQs Can you just replace the cistern on a toilet? Yes, you can replace the toilet bowl cistern if it's damaged or outdated, as long as the new cistern is compatible with the existing toilet pan. It's a cost-effective solution for improving performance or aesthetics without needing a full toilet replacement. For most setups, the connection between the toilet bowl and cistern must align perfectly to avoid leaks or flushing issues. Always check mounting points and inlet/outlet valve compatibility before buying. Why is my cistern of toilet constantly trickling? Constantly trickling lavatory cisterns usually indicate a faulty or misaligned outlet valve or a worn-out flush washer. Water seeps into the bowl because the valve doesn't seal properly. Additionally, there may be a stuck float, high water level, or debris preventing proper valve closure. In some cases, poor sealing between the toilet bowl and cistern can also contribute to continuous water movement. Timely inspection helps prevent water waste. How to fix a toilet cistern that keeps running? To fix a running cistern, check the flush valve seal for wear or misalignment. Also, inspect the inlet valve and float. If the float is set too high, it may cause overflow into the flush pipe. Adjusting or replacing these components usually solves the problem quickly and affordably, restoring proper function to your cistern toilet setup. How long do toilet cisterns last? A toilet cistern usually lasts around 10 to 20 years. This depends on build quality, water pressure, and how often it is used. Internal parts like inlet and outlet valves often wear out sooner and may need replacing after 5 to 10 years. With regular maintenance, the toilet bowl cistern shell itself can last much longer. Do all cisterns fit all toilets? No, toilet cisterns are not universal and do not fit all toilets. Cisterns must match the toilet pan in size, mounting points, and flush outlet position. While many modern lavatory cisterns follow standard dimensions, variations between brands and designs can still affect compatibility. Compatibility also depends on whether the toilet is close-coupled, back-to-wall, or in-wall. Choosing the right toilet bowl and cistern combination ensures both proper installation and long-term reliability. Always check the model, pan code, and inlet type before choosing a replacement toilet bowl cistern. What are the three common faults in a cistern toilet? Here are three common faults in a cistern toilet: Constant running water – Usually caused by a worn flapper valve or faulty flush seal that allows water to leak into the bowl. Weak or incomplete flush – Often due to low water level or a blocked siphon jet. Slow refilling lavatory tank – Typically caused by a malfunctioning fill valve or sediment buildup. What are Toilet Cisterns? Toilet Cisterns at MyHomeware: Durable Design & Flexible Installation The toilet and cistern are the functional heart of your bathroom. At MyHomeware, we provide a versatile range of toilet cistern shells designed specifically for the Australian market. Whether you are replacing a damaged unit or upgrading your bathroom's look, our lavatory cisterns offer the perfect blend of durability and minimalist design. Designed to integrate seamlessly with the toilet bowl and cistern setup, these shells help maintain both visual and functional consistency. The cistern of toilet plays a crucial role in controlling water storage and release, directly affecting flushing efficiency and overall performance. A well-designed toilet tank ensures consistent water flow and reliable flushing in everyday use. Perfect Fit for Popular Toilet Suites MyHomeware provides toilet cistern shells tailored specifically for back-to-wall toilet suites and in-wall options. Each cistern of toilet model is designed to match the corresponding pan codes, ensuring a perfect fit and streamlined installation. Whether your suite has a square or curved shape, round or square flush buttons, you can find a compatible lavatory tank ready for your setup. Properly matched lavatory cisterns ensure stable flushing performance and help prevent common issues such as leaks, misalignment, or inefficient water release. This is especially important for maintaining the balance between the toilet bowl and tank in modern bathroom setups. This compatibility supports a well-balanced toilet bowl and cistern system, improving overall flushing reliability. Aesthetic Variety in Finishes and Forms Available in finishes such as gloss white, matt white, and matt black, these lavatory cisterns help keep your bathroom looking consistent. The clean shapes and neutral colours work well with modern tiles, tapware, and flush buttons without overpowering the space. Quality Materials for Long-Term Durability Crafted from premium-grade materials, the toilet bowl cisterns at MyHomeware are not only visually clean but also built to last. They're engineered to resist wear and surface damage, giving you long-term peace of mind. Even the outer shell is made to maintain its finish despite regular use and moisture exposure. Modular Design for Flexible Valve Compatibility Unlike fixed units, MyHomeware's wall-faced or in-wall toilet cisterns are sold as shells only, giving you the flexibility to pair them with a wide range of inlet and outlet valves, including universal, top, bottom, and back inlet types. This means you can customise your flush system to suit water pressure needs, efficiency goals, or personal preferences. Ideal for Renovations and Repairs If your internal flushing components are still functional but the external lavatory tank is worn or mismatched, replacing just the toilet cistern shell is a smart and cost-effective upgrade. With precise compatibility for MyHomeware toilet models, installation is hassle-free, even for home renovators and DIYers. Related Search: toilet and cistern, toilet bowl cistern, toilet bowl and cistern Load slide 1 of 3 Load slide 2 of 3 Load slide 3 of 3 Pause slideshow Play slideshow ⭐⭐⭐⭐⭐Your No.1 Supplier of Bathroom and Kitchen Products Previous Next Sydney's Largest Showroom Explore hundreds of bathroom and kitchen displays in our expansive Sydney showroom.See, touch and compare before your buy. Best Selling Deals Top-rated bathroom & kitchen products at unbeatable prices, updated weekly to bring you Australia’s best value. Trade-Trusted suppliers Partnered with Australia’s most trusted tradie