Our excellent quality gravity feed 7L hopper guns are for spraying of heavy materials such as concrete face coats, solid plastering, concrete stenciling overcoat and other heavy textures. Three spray nozzles 4, 6, 8mm (3/16″, 1/4″ And 5/16″). Can be used with concrete, masonry, textured paints, and textile wall coatings on medium size surface.