LG WAD34UW2R Owner's Manual page 27

Filter Changing Cycle and Method
Turn left and lift up the filter to remove.

(Use caution as residual water may split from
the filter. Such a case is not leakage.)
Install a new filter by pressing it and turning

it to the right.
Make sure that the wide grooves on both purifier and
filter fit together.
Broad
mounting
holes
Dehydrate your hands by cleaning them with

a dry towel.
CAUTION
mounting
Narrow
mounting
holes
F2
F2
Broad
holes
F1
F1
Narrow
mounting
holes
27