Cedar Creek and Residential Fridge Question

We have a Samsung French door in ours. The top doors are held in place by a simple Velcro strap wrapped around the handles. The bottom has a strap running from one side to the other which attaches to a couple of latches on the cabinet frames. Simple but has been good for about 8k miles and no problems. We only have 2 6 volt batteries and have plenty of juice for an all day drive, which is as long as will generally ever be without shore power. I did change the modified sine wave inverter to a 1000 watt pure sine wave as it supplies house like current. The Samsung is supposed to run fine on the modified but I felt better with the pure.