Leybold LVO 410 Leybonol PFPE Chemical Inert Vacuum Pump Oil, (2 kg, 1 liters) L41001 is for use in chemical processes which require inert mechanical vacuum pump oil fluids. Leybold LVO 410 Leybonol PFPE chemical inert vacuum pump oil is specified by Leybold to meet Ruvac Roots PFPE chemical inert Rotary Piston DK50, DK100, DK 200, E75, E225, & E250 vacuum pump specifications.(This PFPE Leybonol LVO 410 Replaces Leybold HE2700 PFPE)