K2 Plus CFS Tray with Lid,

Screws Required The CFS Desiccant Box is a simple upgrade for Creality filament storage systems, designed to hold 42 grams of silica gel—nearly double the 28 grams in the standard Creality option. With the extra capacity, it does a better job keeping your filament dry and ready to use.

You will need this lid. https://makerworld.com/en/models/1031095#profileId-1013919

If your silica gel is small or cracked, use this one:  https://makerworld.com/en/models/1031116#profileId-1013937