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“Do it Yourself” system for making customizable ventilation grids and hatches

71.607.02Pair (dx+sx) side profiles already provided with hollows for fitting blinds, size 45x22 mm, length 121 cm
71.607.03Head profile 45x22 mm, length 121 cm
71.607.04shutter profile length 122 cm
To calculate how much profile model 71.607.04 is required, do the following calculation: hatch height minus 9 cm, all divided by 2.5; this is the number of slots needed for placing profile model 71.607.04.