
CO-Z Water Distiller
Score: 72/100
ROVSUN Water Distiller
Score: 78/100Rankings

The ROVSUN 1.1 Gallon Water Distiller is a countertop appliance designed for efficient purified water production, featuring a 750W heating element and a 4-liter capacity. It processes approximately 1 liter of water per hour, utilizing a food-grade stainless steel inner tank and a BPA-free collection container to ensure safety and ease of use. Best suited for home use for families wanting purified drinking water without purchasing bottled water.

The CO-Z 1.1 Gallon Water Distiller offers a high daily output of 22.7 liters with UL-certified safety and a stainless steel/glass build. It features activated charcoal filtration but has a slower distillation speed (0.3 gph) than some competitors. It is best suited for users needing high volume and safety certifications, provided they have adequate counter space.
| Attribute | ![]() | ![]() |
|---|---|---|
22.7 litersbest | 4 liters | |
| ↓ lower better | 750 wattsbest | 750 wattsbest |
| ↓ lower better | 1.14 hoursbest | 4 hours |
— | 750 wattsbest | |
| ↓ lower better | 31.5 cmbest | 38.86 cm |
| ↓ lower better | 28 cm | 23.11 cmbest |
| ↓ lower better | 48 cm | 23.11 cmbest |
| ↓ lower better | — | 4.81 kgbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Safety & Compliance(1) | ||
Safety Certifications | UL | Food-grade materials |
Performance & Output(2) | ||
Daily Output (liters) | 22.7 liters | 4 liters |
Distillation Speed (hours) | 1.14 hours | 4 hours |
Build & Materials(1) | ||
Collection Bottle Material | Glass | BPA-Free Plastic |
Dimensions & Weight(4) | ||
Height (cm) | 31.5 cm | 38.86 cm |
Width (cm) | 28.0 cm | 23.11 cm |
Depth (cm) | 48.0 cm | 23.11 cm |
Product Weight (kg) | kg | 4.81 kg |
Usability & Support(2) | ||
Control Type | Single Button | Automatic |
Included Accessories | Cleaning solution | Activated carbon filter sachets, drain hose, cleaning powder |

Products in the top-left offer the best value (high score, low price).

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