A:Answer The 'Replacing the Water Filter' instructions on page 35 in your owner's manual for the ENERGY STAR® Qualified LG 29 cu Ft. French Door Refrigerator with Slim Design Water Dispenser, Model # LRFWS2906D advise to "Use replacement cartridge: LT1000P, LT1000PC, LT1000PCS or ADQ747935**."
All those model numbers refer to the same Water Filter for Select LG Refrigerators, Model # LT1000P, and the only difference between the filters is the packaging they come in.
P is a single filter in a paper box, PC is a single filter in a clamshell, and PCS is two filters in a clamshell...^Ivan.
ENERGY STAR® Qualified LG 29 cu Ft. French Door Refrigerator with Slim Design Water Dispenser, Model # LRFWS2906D