Plastic cistern flush valve CERSANIT Niagara (COAS1000210960) plastic flush unit

The CERSANIT Niagara plastic cistern flush unit is a replacement flush mechanism designed for compatible toilet cisterns. Constructed from durable plastic components, the unit performs standard fill and flush functions required for WC cistern operation. It is intended as a spare part for repair, maintenance, or upgrade of domestic and commercial toilets where the Niagara plastic mechanism fits.

Advantages

The Niagara plastic flush unit offers a straightforward design that facilitates easy installation and servicing. Its plastic construction resists corrosion and scale buildup compared with metal alternatives in typical household water conditions. The mechanism provides reliable basic operation for filling and flushing cycles and can restore cistern functionality without replacing the entire toilet.

Suitable for

• Repairing a malfunctioning toilet cistern in homes
• Replacing worn or leaking flush mechanisms in commercial washrooms
• Routine maintenance and part replacement in rental properties
• Upgrading older cistern internals to a compatible plastic mechanism

Key specifications

• Material: plastic components designed for cistern use
• Functionality: combined fill and flush mechanism for standard WC cisterns
• Compatibility: intended as a drop-in replacement for cisterns designed to accept Niagara-style mechanisms
• Operation type: mechanical float-fill and flush release

How to use

Turn off the water supply to the cistern and drain the tank by flushing. Remove the cistern lid and disconnect the water inlet and flush lever linkage as needed. Extract the old mechanism according to the existing cistern design and install the Niagara plastic unit in the same position, ensuring seals and connections align correctly. Reconnect the water supply, allow the cistern to fill, and check for proper float adjustment and leak-free connections before replacing the lid.

Usage recommendations

Confirm physical compatibility with your cistern model before purchase and keep the original installation instructions or a service manual available during replacement. Use basic hand tools, avoid overtightening plastic fittings, and test multiple flush cycles to verify correct operation and water level settings.