Most manufacturers don't provide the dimension of the drawers inside their refrigerators. Summit does. For example the specifications of the Summit FF642D show that it has has an upper drawer that's 10" high and a lower drawer that's 9-1/4" high. BUT the lower drawer is not full depth; it has a step-up 3-1/2" high and 4" deep at the rear to accommodate the compressor.

My 1/2 gallon carton of milk is 8-1/4" tall so it should fit in either drawer.

Oops! The Summit FF642D is refrigerator only. You could perform the same analysis for the Summit ADRF244 refrigerator/freezer.

I have 2 kitchenaid refrigerator drawers stacked undercounter. I think you can get one refrigerator and one freezer drawer (it's been a while since I looked). The top refrigerator drawer is definitely tall enough for quart and half gallon containers, but is not perfect for gallon containers -- hard to explain, but the KA temperature display is in the way a little -- not impossible, just clumsy. The bottom refrigerator drawer, accommodates gallon containers w/ease

Kitchenaid KUDF204KSB 24" Stainless Steel Undercounter Refrigerator/Freezer (Home Depot).

Why not save the money and do nice fridge undercounter then no issue for storage and honestly just as easy to use and there are great looking ones .