replicator filament moisture resistant housing

My printer is in the same room as my exercise machine and I think the filament gets pretty sweaty.. So these hopefully will keep the in use filament dry. pockets in the back panel to hold silica desiccant beads to absorb any moisture that gets in. A work in progress I have already gone from halves to thirds as the long edge was shrinking by about 1.5mm.
The 200mm x 3mm acrylic tube was about £17 for 250mm on ebay and they very nicely cut it as two 125mm for me at no extra cost.