Ultra-Purewhip Whipped Cream Chargers (100) Cartridge Manufacturer Headquarter: Vienna, Austria Gas Production: Nitrous Oxide Pharmaceutical Production- Belgium Production and Point of Export: Austria or Czech Republic Compatible: All Standard 8 gram Nitrous Oxide Whip Cream Makers including iSi, Kayser, Mosa, Liss 2 Boxes of 50 for Savings