Check out this guide to find out how to get Flood Sac in Monster Hunter: Iceborne! Includes item info and how to acquire Flood Sac.All Material List
Flood Sac - Info & How To Get
Flood Sac- Description
A monster organ designed to hold and preserve tremendous amounts of water.
Flood Sac - How To Get
You can be obtained by defeating Jyuratodus.