Irwins are Ireland’s premier supplier of water Filtration Media. We supply a comprehensive range of high silica filter sand for use in Slow Sand and Rapid Gravity potable water filters. We also supply sand for use in Waste Water Treatment Plants, Sand Polishing and Swimming Pool filters and the Food, Drinks and Pharmaceutical industries. We supply a full range of support gravels for underneath our filter sands. To complement these we supply Anthracite, Garnet, Manganese Dioxide and Activated Carbon to water treatment plants all over Ireland.