I got Accuride slides from McMaster Carr. The heaviest duty slides. The slides could support several fridges, the weak link is the screws in my 1/2" plywood, so I added a strip of plywood below the front of each slide (and above the rear) for bearing support. The hardest part about these slides is they don't come apart, so I had to support the fridge while screwing them on, then crawl around under the back to put the final screws in the cabinet. My fridge drawer is SLIGHTLY deeper than the slide length, which blocked easy access to the front screws. I was able to get a few in at a slight angle. So just make sure the slides are the full length of the drawer depth, or close to it.
The RV Labs latches are so far working great. Only been using them since I posted that and only drove once. No long term reviews yet.