# Waterwise 4000 Countertop Water Distiller vs CO-Z 1.1 Gallon 750W Countertop Water Distiller with BPA-Free Container: specs and price compared

A sourced, side-by-side comparison of the Waterwise 4000 Countertop Water Distiller (Waterwise) and CO-Z 1.1 Gallon 750W Countertop Water Distiller with BPA-Free Container (CO-Z) among countertop water distillers. CO-Z 1.1 Gallon 750W Countertop Water Distiller with BPA-Free Container is the cheaper of the two at $89.99.

## Side by side

| Spec | Waterwise 4000 Countertop Water Distiller | CO-Z 1.1 Gallon 750W Countertop Water Distiller with BPA-Free Container |
| --- | --- | --- |
| US price | $389 | $89.99 |
| Brand | Waterwise | CO-Z |
| Production rate gal per cycle | 1 | 1.1 |
| Cycle time | 4-4.5 hours per 1 gallon batch (up to 6 gal/24hr) | ~3.5-4 hours to process a full 1.1 gal (4L) batch at 0.3 gal/hr (1L/hr) |
| Storage tank capacity | 1 gal borosilicate glass collector bottle | 1.1 gal (4L) BPA-free plastic pitcher/collection container |
| Material | 316-grade stainless steel boiler | 304 stainless steel interior chamber |
| Wattage (W) | 800 | 750 |
| Auto shutoff | Yes | Yes |
| Carbon post filter | Yes | Yes |
| Dimensions | 9 in. diameter x 15 in. H | 9.1 in. x 15.4 in. (distiller body); 7.1 in. x 7.1 in. (collection pot) |
| Weight (lb) | 10 | 8.2 |

## Key differences

- Production rate gal per cycle: Waterwise 4000 Countertop Water Distiller 1 vs CO-Z 1.1 Gallon 750W Countertop Water Distiller with BPA-Free Container 1.1
- Cycle time: Waterwise 4000 Countertop Water Distiller 4-4.5 hours per 1 gallon batch (up to 6 gal/24hr) vs CO-Z 1.1 Gallon 750W Countertop Water Distiller with BPA-Free Container ~3.5-4 hours to process a full 1.1 gal (4L) batch at 0.3 gal/hr (1L/hr)
- Storage tank capacity: Waterwise 4000 Countertop Water Distiller 1 gal borosilicate glass collector bottle vs CO-Z 1.1 Gallon 750W Countertop Water Distiller with BPA-Free Container 1.1 gal (4L) BPA-free plastic pitcher/collection container
- Material: Waterwise 4000 Countertop Water Distiller 316-grade stainless steel boiler vs CO-Z 1.1 Gallon 750W Countertop Water Distiller with BPA-Free Container 304 stainless steel interior chamber
- Wattage (W): Waterwise 4000 Countertop Water Distiller 800 vs CO-Z 1.1 Gallon 750W Countertop Water Distiller with BPA-Free Container 750
- Dimensions: Waterwise 4000 Countertop Water Distiller 9 in. diameter x 15 in. H vs CO-Z 1.1 Gallon 750W Countertop Water Distiller with BPA-Free Container 9.1 in. x 15.4 in. (distiller body); 7.1 in. x 7.1 in. (collection pot)
- Weight (lb): Waterwise 4000 Countertop Water Distiller 10 vs CO-Z 1.1 Gallon 750W Countertop Water Distiller with BPA-Free Container 8.2

## Sources

- Waterwise 4000 Countertop Water Distiller: https://www.waterwise.com/product/waterwise-4000-countertop-distiller/ (waterwise.com, verified 2026-08-05)
- CO-Z 1.1 Gallon 750W Countertop Water Distiller with BPA-Free Container: https://cozpalace.com/products/co-z-1-1-gallon-water-distiller-home-and-kitchen (cozpalace.com, verified 2026-08-05)

Canonical: https://frontdeskreview.com/gear/countertop-water-distillers/waterwise-4000-vs-co-z-1-1-gallon-750w/
Cite: Per The Front Desk Review, Waterwise 4000 Countertop Water Distiller ($389) vs CO-Z 1.1 Gallon 750W Countertop Water Distiller with BPA-Free Container ($89.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/countertop-water-distillers/waterwise-4000-vs-co-z-1-1-gallon-750w/
License: CC BY 4.0.