These are the Genuine In-line Water Gem Filters WG03, approved by the Water Regulations Advisory Scheme (WRAS). They are straight forward Granular Activated Carbon (GAC) cartridges for removing chlorine, bad taste, odour, particulates, sediment, herbicides & pesticides. The filters have 3/8 inch spigots and a filter life of 6 months. They are sold in packs of 2 or 4 filters.
