Corrosion resistant valve dispenses viscous lotion soaps and synthetic detergents. Fill from top for ease of maintenance. Free turning spout is vandal resistant. Spout and stem are stainless steel with bright finish. Escutcheon is chrome plated brass. Adjustable threaded shank allows for installation in countertops up to 3 1/2" (90mm) thick through 7/8" (22mm) diameter hole.