With 3/4" couplings. Prevents the backflow of water from the high-pressure cleaner into the drinking water network.
Usable with:656738 High-pressure cleaner STIHL RE 80 X
656739 High-pressure cleaner STIHL RE 90 PLUS
656741 High-pressure cleaner STIHL RE 110
656742 High-pressure cleaner STIHL RE 130 PLUS
656743 High-pressure cleaner STIHL RE 100 PLUS CONTROL
656744 Cordless high-pressure cleaner STIHL REA 60 PLUS Battery system AK
656745 Cordless high-pressure cleaner STIHL REA 100 PLUS Battery system AP