Cartridge Summary Reference Sheet Units shipped in March 2006 and after. Units shipped before March 2006. Replacement cartridges shipped in July 2006 and after. MultiChoice® 13/14 Old Monitor® 1300/1400 New Monitor® 1300/1400 Shorter Lower Housing Shorter Lower Housing White White Longer Lower Housing Grey Blue or Off White Off White Order RP46074 to Replace Cartridge. 17 Order RP19804 to Replace Cartridge. Blue Order RP19804 to Replace Cartridge.