💧 Dual-flush system: The Toilet Flush System Replacement Kit supports both full-flush and half-flush modes, allowing you to select the water volume according to your actual needs. This effectively reduces daily water wastage, helps lower household water bills, and balances cleaning performance with environmental protection and water conservation 🛡️ Dual-layer Leak-Proof Seal: The Toilet Flush System Replacement Kit features a dual-layer structure comprising an external black rubber seal and an internal white silicone seal, which fit snugly around the cistern outlet. Combined with a one-way check valve design, this prevents backflow of toilet water from contaminating drinking water sources, ensuring safe and hygienic use 🔩 High Quality Materials: The main body of the toilet cistern flush parts is made from high-quality ABS plastic, ensuring durability and robustness. Key components are crafted from 304 stainless steel, offering excellent resistance to ageing, corrosion and rust. Designed for long-term use in the humid environment of a bathroom, it is resistant to deformation or performance degradation, ensuring a long service life 🚰 Anti-backflow Design: The built-in anti-siphon device and one-way check valve effectively prevent toilet water from flowing back into the household water supply pipes during water outages or negative pressure, thus avoiding contamination of the drinking water supply. The inlet valve is fitted with a high-density, removable filter that traps debris such as sand and hair; simply remove and rinse it periodically to maintain clean water quality, ensuring easy maintenance 🔧 Easy to Install: The Toilet Flush System Replacement Kit includes a full set of components such as the drain valve, inlet valve, dual-button panel and seals, making installation straightforward. It is compatible with most toilets featuring a cistern height of 20–25 cm and a bottom outlet diameter of 20–25 cm, allowing ordinary users to replace it themselves, Manufacturer: Wxeadu