Metex Buffalo NRV Rodent Non-Return Flood Defence Valve 150mm (6") (206KX)

Watertight door non-return flood defence valve designed to discourage rats and rodents from entering a property via the drainage system. Positioned securely into a manhole chamber, the valve works by preventing a back flow of waste water into a property by effectively sealing the chamber outlet in a flood situation. Manufactured from stainless steel. Suitable for use in clay, PVC and cast iron pipe systems to suit installation within either an outlet or inlet of a drainage chamber. Untreated Plastic & S... - Manufacturers part numbers: 206KX|UNI 6inch