The double end cap stabilises chemicals in the lubricant to improve the tolerance to high temperature.
ELKE PAO68 RL897 Oil with dye - 1 Litre - 41-1068A
Elke Elke Flushing Agent - 5 Litre - 41-50015
Elke Elke R134a Pag46 Oil with dye - 1 Litre - 41-1020B
Elke Elke Flushing Agent - 5 Litre
Elke Elke R134a Pag46 Oil - 1 Litre - 41-1020A