900mm x 450mm cut out size (75mm corner radius). Left Rear & Right Rear 780x240mm Universal Sliding Window Set for Motorhome 2x. 700 x 350 you need to order the size which suits your cut out size. The item Polyvision Areo Window 700 x 350 Motorhome Camper Van Caravan is in sale since Wednesday, February 26, 2020.