Refco Vacuum pump oil. Vacuum pump oil (Refrigeration technology / Service equipment for refrigeration technology / Vacuum pumps and oil for refrigeration technology). Principal data: contents 1 l, fits with Refco RL-2/4/8, type designation DV-46. Supplied under manufacturer part number 4495366, EAN 7640126682785, HS code 3403.99, country of origin Switzerland.