Seitz Dometic S4 Hinged Window W350 X H500 Caravan Motorhome Camper Van. Dometic Seitz S4 Replacement Hinged Window. The ideal complete window system for motorhomes, caravans, horseboxes and van conversions. The Dometic Seitz S4 hinged window is very quick and easy to install and comes with a set of features for added user benefits. With […]