Fernco's Non-Return Valves allow sewer or surface water materials to freely flow in the direction of the systems mains but block backflow of those materials in the opposite direction in instances, such as, flooding.
Fernco's range of retrofit Non-Return Valves (NRV's) can be installed directly into existing manholes by simply pushing the NRV 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.
The Retrofit NRV's can be fitted in minutes and do not require any specialist expertise or equipment.
Users also benefit from protection against rodent infestation/ The stainless steel reinforced flap helps to block rats and other rodents and insects from travelling up pipes and into homes and commercial buildings.
Features & Benefits
Unobtrusive to natural flow
A proven flood prevention method
Helps to protect homes, properties, commercial buildings, roads, etc
Also suitable as rodent deterrents with rat block features
Your order will be ready to collect two hours from receiving your order confirmation, please remember to bring your order confirmation as proof of order when collecting. We aim to have your order ready, however, sometimes it will be necessary to fulfil the order upon arrival. Any orders placed after 4pm will be ready to collect the following working day.
We deliver to locations across Birmingham, Midlands, South and East of England. We offer free delivery for orders over £250 + VAT, for orders under this amount there is a £30 delivery charge. We aim to deliver orders within 3-5 working days, you will be able to select your preferred delivery date at the checkout. If you would like an out of area delivery please contact us with your requirements.