How the Five Compare on the Numbers
The five models here span two width classes. The Koolatron Kenmore publishes 29.88 inches and the Iceblue publishes 29.9 inches, so both suit a 30 inch opening. The ZLINE publishes 35.75 inches and the COSMO publishes 35.6 inches, so both need a 36 inch opening. The Midea publishes 31 inches, which fits neither class cleanly. Width is the first number to check because it decides whether the cabinet enters the opening at all.
Capacity does not track width in a straight line. The Iceblue publishes 17.7 cubic feet at 29.9 inches wide, while the COSMO publishes 22.5 cubic feet at 35.6 inches wide. The Midea publishes 27 cubic feet, the largest total, but its published depth of 39 inches is also the largest figure here. The ZLINE publishes 21.6 cubic feet at 28.81 inches deep. Depth, not width, is what separates the largest capacity from the rest.
The table does not tell you how any of these cabinets performs. It lists what each maker states, and several cells are empty because the maker publishes nothing for that figure. It also does not cover clearance, door swing, or the plumbing a dispenser needs. Those are installation facts you have to confirm with the maker or the installer before ordering.
Width Classes and What They Fit
The 30 inch class
The Koolatron Kenmore publishes 29.88 inches wide and 185.18 pounds, the lightest of the five. The Iceblue publishes 29.9 inches wide and 185.85 pounds. The two are within 0.02 inches of each other in width and within 0.67 pounds in weight, so the fit is nearly identical. The difference is capacity: the Iceblue states 17.7 cubic feet and the Koolatron states 17.5 cubic feet, a gap of 0.2 cubic feet.
The Koolatron publishes an ENERGY STAR listing and an inverter compressor with Accela Chill. The Iceblue publishes a freezer range from -10F to 5F and humidity controlled crisper drawers. Neither publishes a water dispenser. If the opening is 30 inches, both fit, and the choice comes down to the certification on the Koolatron against the stated freezer range on the Iceblue.
The 36 inch class
The ZLINE publishes 35.75 inches wide and the COSMO publishes 35.6 inches, a difference of 0.15 inches. Both need a 36 inch opening. The ZLINE is the heavier of the two at 370.37 pounds against 282.2 pounds for the COSMO, a gap of 88.17 pounds. That weight matters for the floor and for the number of people needed to move the cabinet into place.
The COSMO publishes 22.5 cubic feet, which is 0.9 cubic feet more than the ZLINE at 21.6 cubic feet. The ZLINE answers with a full width flex drawer with four set temperatures from 30F to 41F, plus an external water and ice dispenser. The COSMO publishes two slide out freezer drawers, soft close doors and an ENERGY STAR listing. Capacity or the flex drawer is the choice here.
Drawers, Dispensers and Controls
What the drawers do
The ZLINE flex drawer is the only one of the five with published set temperatures, four options between 30F and 41F. That range overlaps the freezer and the fridge, so it can hold wine, specialty meat or extra chilled items. The Iceblue publishes humidity controlled crisper drawers for fruit and vegetables. The Koolatron publishes crisper drawers and deep gallon sized door bins. The COSMO publishes two slide out freezer drawers.
The Midea publishes an AutoFill water pitcher and an internal water dispenser, but no drawer temperatures. The COSMO publishes extendable freezer drawers and a soft close mechanism. None of the five publishes a drawer temperature range except the ZLINE, so if a separate zone with a stated range matters, that is the only published option in this group.
Dispensers and daily ice
The ZLINE publishes an external water dispenser and an ice maker at up to 5 pounds of crushed or cubed ice per day. The Midea publishes dual icemakers at up to 5 pounds of ice per day and an internal water dispenser. The COSMO names an automated ice maker without a daily figure. The Iceblue and the Koolatron do not publish an ice maker or a water dispenser in the features listed here.
An external dispenser needs a water line and a clear path through the door, while an internal dispenser keeps the door face flat. The ZLINE and the Midea are the only two with a published daily ice figure, and both state 5 pounds. The Midea also publishes an AutoFill pitcher, which the others do not. Confirm the plumbing route before ordering either one.
Which One Fits Your Kitchen
A 30 inch opening with a certification requirement. The Koolatron Kenmore publishes 29.88 inches wide, 185.18 pounds and an ENERGY STAR listing. It publishes the smallest width and the lightest weight of the five, and it also publishes an inverter compressor with Accela Chill.
A 30 inch opening with a stated freezer range. The Iceblue publishes 29.9 inches wide and a freezer range from -10F to 5F, plus humidity controlled crisper drawers. Its 17.7 cubic foot total is 0.2 cubic feet more than the Koolatron.
A 36 inch opening with a separate temperature zone. The ZLINE publishes 35.75 inches wide and the only flex drawer here, with four set temperatures from 30F to 41F. It is the heaviest at 370.37 pounds, so plan the move.
A 36 inch opening with the most capacity in that class. The COSMO publishes 35.6 inches wide and 22.5 cubic feet, which is 0.9 cubic feet more than the ZLINE. It also publishes an ENERGY STAR listing and two slide out freezer drawers.
The largest published capacity overall. The Midea publishes 27 cubic feet, dual icemakers at up to 5 pounds per day and an AutoFill pitcher. It also publishes 39 inches of depth and 73 inches of height, the largest figures here, so check both clearances.
What We Could Not Verify
These are figures I looked for and did not find published for these five models.
- Annual energy use in kilowatt hours for any of the five.
- Noise level in decibels for any of the five.
- Refrigerator compartment capacity stated separately for the Midea.
- Freezer compartment capacity stated separately for the Iceblue, the Koolatron and the COSMO.
- Required ventilation clearance around the cabinet for any of the five.
- Door swing radius or the depth needed with the doors open for any of the five.
