EcoSpin activator for special applications The EWY activator, which is made entirely of plastic and is especially suitable for osmosis systems/PH 5, is installed in hygiene-sensitive areas, before and after ultrafiltration, or in coffee machines. Excellent lime and germ protection, improved dissolving power, spring water quality Assembly on reverse osmosis systems filter systems (John Guest plug-in system) 1/4-inch design Connection: 1/4 inch John Guest Performance: 10 l/min