Parametric wall mount for Fumpa Pump. Two versions, on has holes at the front as well if you don't have a bit driver that fits the small space. Fits countersunk M4 or M5 screws or bolts. .f3d has plenty of parameters if you like to tweak it, see last picture.

Print profile is ready to go with following settings: 0.20mm, 2 walls, no supports, no brim.