Dometic Residence Air Caravan Awning _Still in box

We bought this awning with the caravan but we wanted a all season model. The previous owners never used it and neither have we so its still in the box brand new and says size 16 on the box. Ive looked them up they are a lovely light grey awning. Full size so will fit the entire caravan but will only fit im told a size 1015-1040cm size caravan so please check will it fit yours first. Ready to takeaway immediately. They are selling new for 2200.00 at least in most places that ive looked.