noun
water bag; filter (in a water system)
Technical term for a bag-like container for water, or a filter component in water systems. The kanji 嚢 means 'bag' or 'sac'.
この装置には水嚢が組み込まれている。
This device has a water bag built in.
水嚢を交換する必要がある。
The water filter needs to be replaced.