Dometic S4 sliding window - 750 x 400mm Classic model with acrylic glass panes and locking system. Front pane (from driver s perspective) is adjustable, rear pane is fixed External and internal frames are screwed together from the inside and provide durable and effective insulation Fly screen and blackout roller blinds can be clipped together and simultaneously adjusted with only one hand Easy handling in different positions and high degree of insulation Quality Dometic Item