Non-Return Valve should be used for rainwater and grey water not containing faeces.

End Non-Return Valve is mounted on the end of the sewage pipe entering collecting wells, Septic Tanks and on pipes draining rainwater to ditches or rivers.

Complies to European DIN EN 13564 standard

Frog Door with connector socket - DN 160 fold the tube at the end of the Sewerage system tube, the into the collector's Fountain - Lazy pits are, or mounted to the drainage pipes. It can protect against rodents, resistant to weather and environmental conditions, 100% brand new in retail packaging, Material: ABS (Acrylonitrile Butadiene Styrene) and stainless steel, connection diameter: 160 mm, Quality European product, conforming to European standard: EN 13564 very easy to use,