EU wall mount boxes - single&triple

Single EU wall mount box, v2 with 4 single holes, v3 with 2 triple holes, 67mm deep. Drill holes (cable grommets) for cables yourself on place where you need it. Use filament with fire retardard, for example PETG-FR - FRJET. Triple EU wall mount box, 60mm deep. If used for data cables, then standard PETG is ok, otherwise use filament with fire retardant too. For gypsing into wall print spacer and attach it, to have the right pitch between lengthwise walls. After printing two boxes for my needs I made few modifications: added reinforcing columns in the midle to avoid walls bending and added reinforcement walls over the arcs for the same reason - gypsum will then hold the walls in right pitch..One triple box comes with grommet on one side, the second is without. The one with grommet you can mirror yourself before printing to have grommet on side you need it.Before other masonry work, you can attach a cover to protect the cables from dirt.In the Czech Republic, these boxes are manufacture