Best Compact Countertop Water Distillers (1–2 Gallon Capacity)

TL;DR: The VEVOR YMK40230 delivers 9.6 gal of 99.9% pure water daily at 0.4 gal/hour, packs automatic safety shut‑off, and offers a digital dual‑temp display for a modest $111.50 price.

The standout spec is its daily capacity of 9.6 gallons, which translates to a steady 0.4 gal per hour output. A 1750 W heating element drives this rate, while the stainless‑steel 304 boiler and 4‑blade aluminum cooling fan keep the system stable. Users also appreciate the dual Celsius/Fahrenheit display that makes temperature monitoring straightforward.

When you line it up against the other four distillers, the VEVOR sits a bit taller at 16.14 inches and deeper at 10.63 inches, making it larger than the ROVSUN’s 15.3‑inch height and 9.1‑inch depth. It also weighs 12.35 lb, so it’s heavier than the ROVSUN’s 10.6 lb but comparable to the Klysiora’s 12.96 lb. While the CO‑Z model lists a lower power draw of 750 W, the VEVOR’s 1750 W gives it the edge in speed and capacity. Its price is modest compared with premium options like the H2o Labs 300SS, yet it offers far more daily output than the budget‑friendly ROVSUN.

Reviewers consistently praise the fast distillation speed and the “no‑fuss” automatic shutdown at 150 °C, which prevents overheating. Professional reviewers note the built‑in dry‑burn protection that kicks in at 115 °C, adding a layer of safety for unattended cycles. On the downside, many users mention that leaving a small amount of water in the tank after each run helps curb limescale buildup, and the included carbon filters need periodic replacement, especially with hard water.

Best for: Home and office users seeking a balance of features and value — the VEVOR Water Distiller offers Distillation Speed: 0.4 gal/hour

Avoid if: Reliability and user satisfaction are your top concerns

TL;DR: The CO‑Z Water Distiller delivers 2 ppm pure water in a 1.1‑gallon (4 L) capacity unit, with a 239°F automatic shut‑off and a durable 304 stainless‑steel boiler for home or office use.

The standout feature is its automatic shut‑off at 239°F, which helps prevent overheating while the 304 stainless‑steel boiling chamber removes bacteria, dissolved solids and VOCs to reach a reported 2 ppm water purity. Its 1.1‑gallon (4 L) collection carafe gives you enough distilled water for a day’s worth of coffee, CPAP use or humidifier refills without constant refilling.

Compared with the other four distillers in this roundup, the CO‑Z sits on the deeper side at 18.9 inches, out‑measuring VEVOR’s 10.63‑inch depth and ROVSUN’s 9.1‑inch depth. It’s a bit wider than VEVOR (11.02 inches vs 9.45 inches) but narrower than the H2o Labs model, which stretches to 20 inches. In height, the CO‑Z is shorter than VEVOR’s 16.14 inches and ROVSUN’s 15.3 inches, making it a solid fit for most countertops. Capacity matches ROVSUN’s 1.1‑gallon tank, while Klysiora offers a similar 4‑liter volume but with a slightly shallower profile.

Reviewers consistently praise the high‑purity output and the sturdy stainless‑steel construction, noting that the single‑button control makes operation straightforward. The included cleaning solution also helps maintain performance over time. On the downside, the 4.1/5 star rating is modest compared with some rivals, and the 0.3‑gallon‑per‑hour distillation rate can feel slow if you need larger batches quickly. The unit draws 750 W, which is typical for countertop distillers but worth noting for energy‑conscious users.

Best for: Those prioritizing quality and willing to pay for premium performance — the CO‑Z Water Distiller offers Capacity: 1.1 gallons (4 liters)

Avoid if: You have limited desk space or need portability

TL;DR: The ROVSUN 4‑liter water distiller churns out about 1 liter per hour, weighs 10.6 lb, and auto‑shuts off at 320°F, offering solid value for home use.

What really stands out is the 1 liter per hour processing rate, which lets you fill the 1.1‑gallon (4 L) tank in roughly four hours. The unit automatically powers down once the water reaches the 320°F safety cutoff, and the built‑in auto‑shutoff prevents overheating. Its stainless‑steel inner tank and BPA‑free collection bottle keep the distilled water pure.

Compared with the other four distillers in this roundup, the ROVSUN is lighter than the VEVOR (12.35 lb) and Klysiora (12.96 lb) models, while still packing a comparable 4‑liter capacity. It sits a bit shorter than VEVOR’s 16.14‑inch height and is shallower than VEVOR’s 10.63‑inch depth, making it a tighter fit on a countertop. The CO‑Z unit shares the same 4‑liter capacity but is considerably deeper, and the H2o Labs model is lighter but taller.

Reviewers appreciate the quick 1 L/h output and the low‑noise operation, noting that the unit runs quietly enough for a kitchen or office. However, the four‑hour cycle for a full batch means you need to plan ahead, and users report having to clean the tank manually after every two cycles. The included activated‑carbon filter sachets and drain hose help maintain performance, but the overall footprint can feel large on cramped countertops.

From a technical standpoint, the ROVSUN runs on a 750 W heating element and draws 110 V at 50/60 Hz, matching typical household outlets. Its food‑grade 304 stainless‑steel interior and flame‑retardant housing add durability, while the aluminum fan aids cooling. The package comes with three carbon filter sachets, a drain hose, and cleaning powder, covering the basics you need to start distilling right away.

Best for: Budget-conscious buyers seeking a reliable entry-level option — the ROVSUN Water Distiller offers Frequency: 50/60Hz

Avoid if: You need advanced features or professional‑grade performance, or you have limited counter space.

TL;DR: The Klysiora 4‑liter water distiller delivers stainless‑steel durability, automatic shut‑off at 302°F and a 6‑liter daily output, but its heft and price‑to‑value ratio trail lighter, cheaper rivals.

The standout feature is its built‑in auto shut‑off that triggers at 302°F, providing a safety net against overheating. Inside, a food‑grade 304 stainless‑steel boiler protects the water from corrosion, and the 4‑liter (1.05‑gallon) tank fits comfortably on most kitchen counters.

At 12.96 lb, the Klysiora is heavier than the ROVSUN model (10.6 lb) and the VEVOR unit (12.35 lb), which may limit placement options. Its 13.39‑inch height is shorter than VEVOR’s 16.14‑inch profile, but taller than CO‑Z’s 12.4‑inch height. The auto shut‑off temperature sits just above CO‑Z’s safety cut‑off of 300°F, while ROVSUN’s safety cutoff is higher at 320°F.

User reviews frequently praise the stainless‑steel construction and the inclusion of cleaning powder, noting that the device reliably produces water with a purity level of 2 ppm. However, several commenters point out that the value‑for‑dollar is not as strong as comparable models that offer similar capacity at a lower price.

Technically, the distiller runs on an automatic control system, completing a full distillation cycle in about 4 hours and delivering up to 6 liters of distilled water per day. It does not include a separate filtration system, relying solely on the distillation process to achieve its 2 ppm purity.

Best for: Entry-level buyers or those on a tight budget — the Klysiora Water Distiller offers Capacity: 4 liters

Avoid if: You want the best value-per-dollar in its price range

TL;DR: The H2o Labs 300SS White distills up to 3.79 L of water in under six hours, packs a 304 stainless‑steel boiler, a glass carafe and UL‑approved safety in a compact 10‑inch‑deep countertop unit.

This model’s standout spec is its 565 W heating element, which delivers a full gallon of distilled water in less than six hours while consuming less power than the 750 W units found in the CO‑Z and ROVSUN distillers. The single‑button control and automatic shutoff further simplify operation, and the UL‑approved thermal switch adds an extra safety layer.

Compared with the four other contenders, the 300SS is shallower than the CO‑Z’s 18.9‑inch depth but taller than the VEVOR (16.14 in) and Klysiora (13.39 in) units. Its 20‑inch width makes it the widest in the group, giving it a stable footprint despite weighing only 7.0 lb—lighter than VEVOR’s 12.35 lb and ROVSUN’s 10.6 lb. Power‑wise, its 565 W draw is modest against the 750 W draws of CO‑Z and ROVSUN, which can matter for energy‑conscious homes.

Professional reviewers praise the 304 stainless‑steel interior for resisting corrosion and the glass collection vessel for eliminating plastic‑leach concerns. Users echo this sentiment, noting the long‑lasting activated‑carbon pods (three times the media of typical filters) and the included cleaning crystals as convenient maintenance aids. The single‑button start and automatic shutoff are repeatedly highlighted as user‑friendly features.

Best for: Those prioritizing quality and willing to pay for premium performance — the H2o Labs 300SS White offers Depth: 10.0 inches

Avoid if: You need advanced features or professional‑grade performance