Z Fixing of the diffuser to the plenum box with a cross-member S Fixing of the diffuser to the plenum box with spring clamps U Fixing of the diffuser to the plenum box with self-tapping screws
Z pritrditev difuzorja na komoro s traverzo S pritrditev difuzorja na komoro z vzmetnimi sponkami U pritrditev difuzorja na komoro s samovreznimi vijaki