8418.21.00 - Compression type

This HTS classification covers household-type refrigerators that operate using a compression-type refrigeration system. These are typically self-contained units designed for domestic use to preserve food and beverages at chilled temperatures. The defining characteristic of this category is the use of a mechanical compression cycle, involving a compressor, condenser, evaporator, and expansion valve, to achieve cooling.

Within the broader heading of household-type refrigerators, this 8418.21 category specifically delineates those employing compression technology, distinguishing them from any other potential refrigeration mechanisms that might fall under the sibling category 8418.29 ("Other").

The subcategories under 8418.21 are further refined based on the critical physical characteristic of refrigerated volume. This granular breakdown into liters allows for precise classification based on the capacity of the appliance, ranging from under 184 liters up to 382 liters and over. This differentiation is crucial for statistical tracking, trade analysis, and potentially for the application of specific duties or import regulations.