Howdythe correct part number is RBC11, but this comprises the same component cells as 2x RBC7, so either way works.https://secure.ups-trader.co.uk/rebuild-kits/44-rbc11-taped-kit.html
I should add some part numbers for the 3000 tower that are correctSU3000iSUA3000iSMT3000iSMT3000icSUA3000XLISUA3000RMXLI