Rialto 530-5 replacement 3 way fridge

Spawneybubble

We have recently bought our very first caravan and although an older model is in excellent condition. As we have been on our first little break away have found that we need to replace a few things to make her perfect again could anyone help by letting us know how to find out exactly what model of fridge was originally fitted in the van. When we bought it it had been sites and previous owners have replaced the original fridge with a domestic one not suitable for travelling at all! Having looked all through our owners handbook and finding that there are 3 different models I am at a loss

 

Thank you for any help and advice it will be gratefully received