LG WW174NPC Owner's Manual page 16

WW172EP/WW173EPB/WW162EP/WW174NPC
*Features & Spec. may vary from model to model
16
Water level sensor*
Mineral
Booster
(WW172EP/173EPB/174NPC Only)
Filter
RO
/
Recovery
Post
Plus
(WW162EP Only)
Carbon
Filter
Flow Restrictor 250 ml/min
(WW172EP/WW173EPB/WW162EP only)/
Flow Restrictor 200 ml/min
(WW174NPC only)
Water level sensor*
litres
litres