Case Size: 1/17 fl oz. Single 17 fl oz bottle of premium Vietnamese fish sauce. Red Boat Fish Sauce is traditionally crafted from wild-caught black anchovies and sea salt, fermented slowly to concentrate natural umami and briny depth. This single 17 fl oz glass bottle is perfect for tasting and small-batch cooking. Store in a cool, dry place; refrigerate after opening to preserve its rich, savory profile.