Backflow preventer nipple 3/4", IG/AG ¾"
The MONTEC® backflow preventer nipple 3/4" protects fittings and drinking water pipes from the unwanted backflow of used water. It is suitable for household appliances according to KTW-BWGL such as dishwashers, washing machines and other appliances. To prevent water from flowing back, the connector is equipped with a 3/4" internal thread and a 3/4" external thread. With its brass manufacture, the fitting features durable quality and is resistant to corrosion.

Backflow preventers protect drinking water pipes against the unwanted backflow of used water according to DIN EN 61770.
— for white appliances according to KTW-BWGL
— brass
— backflow preventer nipple internal thread ¾" x ¾" external thread to prevent backflow of water in dishwashers, washing machines and similar appliances

Article type:
Connecting materials
Backflow preventer:
Intended use:
For the waste water hose of washing machines or dishwashers
Screw connection:
3/4" mounted male thread


Little things make big differences

With the MONTEC® range, Naber supplies all the relevant standard components – from the set for the sink connection to the kitchen connection box, which considerably simplifies the electrical installation of multiple large appliances.


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