Here is the link of the correct kit you need for Miele model S8390
https://www.ezvacuum.com/miele-s5-series-canister-vacuum-supply-kit-1-hepa-filter-10-miele-gn-bags.html
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Here is the link of the correct kit you need for Miele model S8390
https://www.ezvacuum.com/miele-s5-series-canister-vacuum-supply-kit-1-hepa-filter-10-miele-gn-bags.html