It looks like REI has rebranded evernew products with their own house label this year. On their website they're offering the .9 liter in the uncoated version, but not the 1.3 liter. I assume they're not discontinuing the uncoated 1.3 liter model, but that they will be available in the near future.
Try calling REI and ask if they'll be carrying the model you want. Even if it isn't ready now the 1.3 liter pot should be in their computerized inventory system.