Part number: DA-100-21000AF1125P015
Catalog:https://www.parker.com/Literature/Germany/Automotive%20-%20OPEL/chapter_3_9_HY10_4002_UK.pdf
We can precharge with N2 (nitrogen) gas up to 200 BAR.The price depends on the size of the accumulator, but up to 1l volume is approx. 50€+VAT