Dometic Seitz S4 Hinged windows W500 x H300 Caravan Motorhome Camper Van. Seitz Dometic S4 Hinged Window. S4 OPENING TOP HINGED WINDOW SYSTEM – S4 is supplied as a complete kit. Of window and integrated Blind flyscreen system, all in one box. Seitz S4 is the window of choice by many motorhome and camper. Easy […]