This hand dryer odour neutraliser creates a cleaner ambience at commercial washrooms. Each package includes 4 tablets. Duration varies depending on use, but as an estimation every tablet lasts for about one month. The product is compatible with the following hand dryers: Machflow, G-Force MK II, Dryflow® EcoSlim, Speedflow range and, also known as part 9481002, Dualflow Plus or D-Flow Eco. IMPORTANT: Note that in order to attach and hold the tablet in the Machflow, G-Force MK II and Speedflow, it is necessary to acquire at least one neutraliser cap per hand dryer, which can be sold together (pack here) or separately (part 933008UL).