12pcs RP19804 Shower Cartridge for Delta Faucets 1300/1400 ~ Replacemet Part
(fits for select Monitor valve before 2007, doesn’t fit for the MultiChoice Universal Valves (2007 ~ present). For selected Monitor valves prior to 2007 and does not fit from 2007 to the present. (Does not fit for 13/14 series). ).