WILL A FRESHJET 7 SERIES FIT MY DOMETIC IBIS 4 CUTOUT?

Good news. Yes, you can replace your Dometic Ibis 4 air conditioner with a FreshJet 7 Series. 

Here's why: The Dometic FreshJet 7 Series, is designed to be compatible with existing cut-out sizes from previous Dometic models Ibis 4, Harrier Lite, and Harrier Plus. The mounting plate for the FreshJet 7 Series works with two cutout sizes: 360 x 360 millimetres (mm) and 400 x 400 mm.

In short, the FreshJet 7 Series should fit neatly into the existing cutout from your Ibis 4.