Home / Media / Video / GRAFF's Progressive Cartridge Latest GRAFF - An Ode To Crafstmanship GRAFF's Luxurious Designs GRAFF's Art of Bath A Story of Inspiration Mr Meloda on GRAFF Finishes GRAFF's Progressive Cartridge GRAFF Around the World M-Series Features and Installation Discover the M-Series: Modularity and Functions GRAFF Ametis Ring Media / Video Video 06/03/2019 GRAFF's Progressive Cartridge How does a progressive cartridge work?