This project is an add-on to the Modular Spool Holder by jimmy b. It uses the modular pieces to hold 4 spools in a Sterile 20 qt gasket box storage bins that are available on Amazon, Walmart, and even the Kroger grocery store here. It then adds desiccant boxes to the front along with a raised holder for a hydrometer.

To make a box print the following from this project:

The two desiccant boxes and lids.

The 4 modified feet in this project.

One of the hydrometers. There's two variations for if you need the slot at the top/bottom or offset 22.5°.

From the modular spool holder print:

2x End chassis

3x Central chassis

4x Feet

8x Spool holder