The Stihl 42236706600 pump hose is an original equipment manufacturer (OEM) replacement part specifically designed for various Stihl SG series backpack sprayers. This genuine Stihl component is crucial for maintaining efficient liquid transfer within the sprayer system, ensuring optimal performance and durability. It is compatible with Stihl backpack sprayer models including SG10, SG11, SG11 Plus, SG20, SG21, SG31, SG51, and SG71.