Fernco’s Non-Return Valves allow sewer or surface water materials to freely flow in the direction of the drainage systems mains, but block backflow of those materials in the opposite direction in instances such as flooding. The design features of the Valves also make this device ideal in pest control scenarios, acting as a rat blocker as well as a flood control device. <P><P> Fernco’s range of retrofit Non-Return Valves can be installed directly into existing manholes by simply pushing the Valve into the desired pipe inlet. The product prevents foul water flowing back from the blocked sewerage systems to flood the property from the inside via toilets, plug holes and waste pipes. <p><p> <strong> Features & Benefits: </strong> <br> <ul> <li> Unobtrusive to natural flow. <br></li> <li> A proven flood prevention method. <br></li> <li> Helps to protect homes, properties, commercial buildings, roads and more. <br></li> <li> Suitable as rodent deterrents with rat block features. <br></li> <li> Maintenance free. <br></li> <li> For DN100 Pipes. <br></li> </ul>

Brand Name	Fernco
Manufacturer Model No	NRV100