- two-part, consisting of a rear housing and a front part with a mineral fibreboard insert
- all-round groove indicates the maximum opening size
- for loudspeakers, displays and LED lights
- two-part, consisting of a rear housing and a front part with a mineral fibreboard insert
- all-round groove indicates the maximum opening size
- for loudspeakers, displays and LED lights
- two-part, consisting of a rear housing and a front part with a mineral fibreboard insert
- all-round groove indicates the maximum opening size
- for loudspeakers, displays and LED lights
- two-part, consisting of a rear housing and a front part with a mineral fibreboard insert
- all-round groove indicates the maximum opening size
- incl. internal support element to strengthen the housing
- two-part, consisting of a rear housing and a front part with a mineral fibreboard insert
- all-round groove indicates the maximum opening size
- incl. internal support element to strengthen the housing
- suitable for installation in horizontal or vertical formwork and in masonry
- two-part, consisting of a housing and a mineral fibreboard cover
- Optional accessory: Set of Prefix® wing brackets
- suitable for installation in horizontal or vertical formwork and in masonry
- two-part, consisting of a housing and a mineral fibreboard cover
- Optional accessory: Set of Prefix® wing brackets
- suitable for installation in horizontal or vertical formwork and in masonry
- two-part, consisting of a housing and a mineral fibreboard cover
- Optional accessory: Set of Prefix® wing brackets
- suitable for installation in horizontal or vertical formwork and in masonry
- two-part, consisting of a housing and a mineral fibreboard cover
- Optional accessory: Set of Prefix® wing brackets
- For supporting all boxes (99xx.xx without support element connection detail) on erected wooden formwork
- Fixing of the base plate by means of the four enclosed nails
- Fixing of the supported box by screwing onto the support plate
- Without extension piece, adjustable for wall thickness from 135 to 205 mm + depth of supported box. With enclosed extension piece, adjustable from 195 to 265 mm + depth of supported box.