We are always looking for ways to make great products even better. Superior quality and popular features allow our customers to find their perfect drinking solutions. Our products are ideal for medical facilities, schools and universities, office buildings, airports, shopping malls, sports arenas and other high-traffic venues, for both indoor and outdoor installations. Elkay® Cartridge Regulator, For Use With: E5, E6, E7, E12 Series Elkay®and Halsey Taylor®Water Cooler, Domestic