8V83431 VBM VALVE KNOB Shaft hole sqare 6x6, d.40mm.Fits all Mini K3 serie steam/water valves, Isomac, Giotto, Euro 2000, VBM (mod. Domobar Super), etc. Go back Request info Warning! To make an order by using our Web Site and to check out our items, You need to get an account. Login Sign up