This hand dryer odour neutraliser creates a cleaner ambience at commercial washrooms. The product consists of one cap to hold the fragrance tablet and four fragrance tablets. As you can see on this video, it is easy to install and replace. Tablet duration varies depending on several factors, but as an estimation every tablet lasts for about one month. The cap must only be purchased once. Tablet packs can be bought separately (RCPOM14). The product is compatible with the following hand dryers: Machflow, G-Force MK II, Dryflow® EcoSlim and the Speedflow range. Tablets can be used as well in Dualflow Plus and D-Flow Eco (alternative part code is 9481002) without needing the neutraliser cap.