Sterilite 20 Quart Gasket Box, Weather-Resistant Clear Storage Bin with Lid, Blue, 6 Count

I'm using these bins (which I pick up singly in my local Walmart): Sterilite 20 Qt. Gasket Box Blue Aquarium, Bins with Lids, Latching Storage Containers with Locking - Walmart.com. Each container can hold 4-5 spools. In each container, I print a 60x150mm cylinder desiccant cannister and I put in a round hygrometer that can go down to 10%. Every spool that gets opened gets a desiccant spool holder full of desiccant in the center. I print on my A1 (with BMCU) from Polymaker Polydryer boxes. I have the kit with 4 boxes and 1 dryer. After 10 months, the storage bins are still sitting at 10%. A few of the Polydryer boxes need their desiccant refreshed.