Sealing collar for multiple combinations of Roto Q-4 roof windows P_. It comes in variants: 2x1 - two windows next to each other, 3x1 - three windows next to each other, 2x2 - two windows at the top and two at the bottom.

Standard spacing between frames in the assembly: side by side - 10 cm variant S_ / 14 cm variant P5; one above the other - 10 cm variant S_ / 12 cm variant P5.