Dimensions: 70mm ventilation diameter (35mm radius) 4mm holes that are set 72mm apart. 103x103x11 mm total size.

The white part is the 3d printed replacement for the yellow aged ventilation grille. I reinforced the corners and rounded down the sharp edges. This part is specifically for a sealine yacht, but i guess, it also looks nice in the household or bathroom, wherever you need a cover for your ventilation pipes.