Yankhauer Suction Handle with thumb control vent.Same as J-489, only with a thumb control vent. Smallvent hole on the handle creates suction when blockedby thumb.
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JOR489A
CG20,PG20,MF20,MV-J452,MV-Z451,MV-663,MV-8683,MV-685,35R,MV-Y922,PD30,RXPENVK250-1000,AHS35W,MV-637-V,35WS,TA5X3,VVG3,VVG3SC,