The UTB mounting rail is an accessory for Lindinvent's HTK and HMK diffuser boxes, used for concealed installation.

The UTB is available in two versions:

• UTB-250 for the smaller HTK-160/250 diffuser box
• UTB-400 for the HTK-250/400 and HMK-250/400 diffuser boxes

The UTB mounting rail secures the diffuser box in the correct position relative to the suspended ceiling. The UTB is supplied as standard and is compatible with the most common ceiling grid profiles.

The thickness of the ceiling tile must not exceed 40 mm. For uncommon ceiling tile variants, the diffuser box is installed as a free-hanging unit without a mounting rail.