Backflow preventer including 3/4" coupling

During domestic and professional cleaning work, the STIHL backflow preventer including 3/4” couplings ensures that no contaminated water enters the drinking water network from your STIHL high-pressure cleaner if it is connected directly to the water network. The STIHL backflow preventer is supplied with a 3/4" plastic coupling as standard. You can mount it directly between the water connection and your STIHL electric high-pressure cleaner. This means that the water can flow in only one direction, preventing backflow from the high-pressure cleaner in the event of an interruption or once cleaning is complete.