10 Best Countertop Water Filters for Apartments (October 2026)
The best countertop water filters for apartments include the DREO RO 112 Countertop RO for narrow kitchens, the Travel Berkey 1.5 Gallon for outlet-free homes, and the Aquasana Countertop Water Filter for mineral retention.
On this page (3 sections)
The best countertop water filter for an apartment depends on available space, water goals and how you want to refill it. DREO is the top pick here for its narrow footprint, feed tank and separate pitcher, while gravity filters suit kitchens where you want to avoid electricity.
Measure your counter before you choose. Check cabinet clearance and outlet access.
Also check the room needed to remove a tank or pitcher. A unit that technically fits may still get in the way if it blocks your main prep area.
For a broader overview, read our plain guide to countertop water filter systems. If reverse osmosis is your priority, compare the options in our best countertop RO systems guide.
Our picks at a glance
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Best for visible refillsCheck it - 5
Check itWaterdrop C2S Glass Pitcher RO
Best for chilled water - 6
Check itBritish Berkefeld 1.58 Gallon Ceramic
Best for ceramic gravity - 7
Check itPurewell 1.5 Gallon Gravity Filter
Best for included stand - 8
Best for larger feed tanksCheck it - 9
Best for very tight countersCheck it - 10
Best for portable ROCheck it
How do these countertop water filters suit apartment kitchens?
The best apartment countertop filter is the one whose size, power needs and refill style suit your kitchen. These 10 options include reverse osmosis, powered carbon and gravity systems, each with a different balance of storage, care and convenience.
We compared dimensions, water storage, power needs, filtration methods and stated maintenance details. The picks below cover small counters, outlet-free setups, RO and glass pitcher storage.
| Product | Best for | Water method | Dimensions | Storage | Our score |
|---|---|---|---|---|---|
| DREO RO 112 Countertop RO | narrow kitchens | Reverse osmosis | 14.5 x 6.7 x 13.4 in | 3 L tank plus 1.1 L pitcher | 8.9 |
| Travel Berkey 1.5 Gallon | outlet-free homes | Gravity-fed activated carbon | 7.5 in diameter x 18 in assembled | 1.5 gallons | 8.2 |
| Aquasana Countertop Water Filter | mineral retention | Carbon block and ion exchange | 9.69 x 7.96 x 11.61 in | 8.1 | |
| SimPure Y9A UV Alkaline RO | visible refills | Reverse osmosis with remineralization | 16 x 9.3 x 14.3 in | 8.0 | |
| Waterdrop C2S Glass Pitcher RO | chilled water | Reverse osmosis | 15.8 x 6.1 x 11.4 in | 7.9 | |
| British Berkefeld 1.58 Gallon Ceramic | ceramic gravity | Ceramic gravity filtration | 8.1 x 8.2 x 12.79 in | 7.9 | |
| Purewell 1.5 Gallon Gravity Filter | included stand | Gravity-fed carbon, silver ion and hollow fiber UF | 7.5 in diameter x 18 in tall | 7.7 | |
| AquaTru Classic Alkaline | larger feed tanks | Reverse osmosis | 14 x 12 x 14 in | 7.7 | |
| Philips Slim Countertop RO | very tight counters | Reverse osmosis | 12.83 x 4.44 x 13.86 in | 7.5 | |
| Bluevua ROPOT-Travel | portable RO | Reverse osmosis with UV | 10 x 5 x 13.5 in | 7.5 |
DREO RO 112 Countertop RO: Best for narrow kitchens
DREO RO 112 Countertop RO: Best for narrow kitchens
- 3 L tank plus 1.1 L pitcher
- 14.5 x 6.7 x 13.4 in
- No plumbing
- 3:1 pure-to-drain ratio
Its narrow footprint and included pitcher suit kitchens with limited counter space. The RO system needs a power outlet and regular tank refills.
Pros
- Slim 6.7 in width
- TDS and filter-life monitoring
- Auto-fill pitcher
Cons
- Uses electricity
- Requires feed-water refills
DREO is a strong fit for a narrow kitchen that still has an outlet. It measures 14.5 x 6.7 x 13.4 in and pairs a 3 L tank with a 1.1 L pitcher, giving you a separate vessel for serving without a plumbing connection.
DREO says its RO system reduces several contaminants, including lead, chlorine, PFOS and PFOA. It includes real-time TDS and filter-life monitoring, an auto-fill sensor for the pitcher and an internal self-cleaning flush.
The stated 3:1 pure-to-drain ratio means some feed water becomes reject water. Keep the tank fresh and follow the filter change reminders; DREO gives a 265 gallon filter life.
Choose it if you have an outlet and want compact RO for daily drinking water. Skip it if you don't want to refill a source tank or manage reject water.
Travel Berkey 1.5 Gallon: Best for outlet-free homes
Travel Berkey 1.5 Gallon: Best for outlet-free homes
- 1.5 gallon capacity
- 7.5 in diameter
- Gravity fed
- No electricity or plumbing
This stainless steel gravity system avoids a power cord and plumbing. Its 18 in assembled height needs room above the counter.
Pros
- No electricity needed
- Compact diameter
- Upper chamber nests for storage
Cons
- Tall when assembled
- Water passes through by gravity
The Travel Berkey suits renters who want filtration without an outlet, plumbing or a permanent setup. Its 1.5 gallon stainless steel chambers are 7.5 in across and about 18 in tall when assembled.
Gravity moves water from the upper chamber through the included pair of Black Berkey Elements into the lower chamber. Berkey says the elements are designed to reduce or remove more than 200 contaminants, and gives a combined capacity of up to about 6,000 gallons depending on water quality, use and maintenance.
That height can suit an open counter better than a space beneath a low cabinet. The upper chamber nests inside the lower one for storage or transport, and you'll need to prime the elements before use.
Choose it if you want a non-electric dispenser with room for a day's water. Skip it if counter clearance is tight or you want water ready as soon as you press a button.
Aquasana Countertop Water Filter: Best for mineral retention
Aquasana Countertop Water Filter: Best for mineral retention
- Powered carbon block and ion exchange
- 9.69 x 7.96 x 11.61 in
- 300 gallon filter capacity
- Does not reduce TDS
Aquasana's powered system filters water without reducing TDS and is designed to retain naturally occurring minerals. It needs a nearby outlet.
Pros
- No plumbing
- Retains naturally occurring minerals
- Filter change every 300 gallons or 6 months
Cons
- Uses electricity
- Does not reduce TDS
Aquasana's powered carbon block and ion exchange system fits an apartment where you want a plug-in dispenser but don't want reverse osmosis. It measures 9.69 x 7.96 x 11.61 in, needs no plumbing and has a 300 gallon filter capacity.
Aquasana says its Claryum filtration reduces up to 99% of 78 contaminants, including lead, PFAS, microplastics and mercury. The system is designed to retain naturally occurring minerals, and it does not reduce TDS.
The brand recommends replacing the filter every 300 gallons or 6 months for best performance. Check outlet position and leave room to fill and operate the dispenser.
Choose it if retaining minerals and avoiding RO are priorities. Skip it if you don't have an outlet nearby or specifically want lower TDS.
SimPure Y9A UV Alkaline RO: Best for visible refills
SimPure Y9A UV Alkaline RO: Best for visible refills
- Side-mounted transparent tank
- 16 x 9.3 x 14.3 in
- No plumbing
- 6-stage RO with mineral addition
A transparent side tank makes the water level easier to see and refill. Allow 18 in of vertical clearance and space to reach the tank.
Pros
- Side tank can be refilled without moving the unit
- Filter-change indicator lights
- No plumbing
Cons
- Uses electricity
- Needs 18 in vertical clearance
SimPure's transparent side tank makes it easier to see how much source water remains, and you can refill it without pulling the unit away from the wall. Its dimensions are 16 x 9.3 x 14.3 in, and it needs 18 in of vertical clearance.
The Y9A uses six-stage reverse osmosis followed by mineralization. SimPure says the system can reduce TDS by up to 99.88% before the mineral filter adds minerals back, which can raise the final TDS reading.
It needs an outlet and regular tank care. SimPure recommends replacing the PPC and ALK filters every 6 months and the RO filter every 9 months, with actual filter life depending on water quality and maintenance.
Choose it if you want to see the tank level and prefer remineralized RO water. Skip it if the height or filter schedule doesn't suit your kitchen.
Waterdrop C2S Glass Pitcher RO: Best for chilled water
Waterdrop C2S Glass Pitcher RO: Best for chilled water
- 40 oz detachable glass pitcher
- 15.8 x 6.1 x 11.4 in
- Installation-free
- 528 gallon stated filtration capacity
The detachable glass pitcher can go in the fridge, while the RO unit stays on the counter. Plan for a power outlet and space for the feed tank.
Pros
- Slim 6.1 in width
- Detachable glass pitcher
- Smart display and voice alerts
Cons
- Uses electricity
- Requires feed-water refills
Waterdrop pairs its countertop RO unit with a 40 oz detachable glass pitcher that can go in the fridge. The unit is 15.8 x 6.1 x 11.4 in, a narrow option if your counter has enough depth.
Its six-stage system uses an RO membrane. Waterdrop says it reduces substances including PFOA, PFOS, lead and chlorine, and gives a filtration capacity of up to 528 gallons.
This is an electric appliance with a source-water tank, so plan for refills and space to remove the pitcher. Its display and voice alerts can remind you about refills and filter changes.
Choose it if you like keeping filtered water cold in a glass pitcher. Skip it if you need filtration without electricity or want a larger serving vessel.
British Berkefeld 1.58 Gallon Ceramic: Best for ceramic gravity
British Berkefeld 1.58 Gallon Ceramic: Best for ceramic gravity
- 1.58 gallon capacity
- 8.1 x 8.2 x 12.79 in
- Non-electric gravity filtration
- Ceramic filters
This stainless steel dispenser uses gravity and ceramic filters, so it needs no outlet. Its height and refill access still matter under cabinets.
Pros
- No electricity or plumbing
- Compact height among gravity options here
- 1.58 gallon capacity
Cons
- Water passes through by gravity
- Ceramic filter replacement needs planning
British Berkefeld is a non-electric gravity filter with a 1.58 gallon capacity and stainless steel body. At 12.79 in tall, it is shorter than the Travel Berkey and Purewell systems in this roundup, though cabinet clearance still matters.
Its ceramic filters rely on gravity, so there is no cord or plumbing connection. The brand describes reduction of bacteria, chlorine, sediment and heavy metals; check the filter configuration and replacement guidance for your intended use.
This setup may suit an apartment where a plug-in appliance is inconvenient. Leave space to access the upper chamber for filling and the lower chamber for dispensing.
Choose it if you want a non-electric system with a ceramic filter. Skip it if you need a fast fill on demand or have no room for a standing dispenser.
Purewell 1.5 Gallon Gravity Filter: Best for included stand
Purewell 1.5 Gallon Gravity Filter: Best for included stand
- 1.5 gallon capacity
- 7.5 in diameter x 18 in tall
- No electricity
- Two included filter elements
Purewell's stainless steel chambers and included stand suit a counter with room for a tall dispenser. It does not lower TDS.
Pros
- No electricity needed
- Stand included
- Two filter elements included
Cons
- 18 in assembled height
- Does not lower TDS
Purewell gives you a 1.5 gallon stainless steel gravity system, with a stand and two filter elements included. It is 7.5 in across and 18 in tall, so it works best where you can spare overhead space.
Its filter combines hollow fiber ultrafiltration, silver ion membrane and activated carbon block. Purewell says the system reduces chlorine and intercepts rust, sediment, organic matter and heavy metals; it also states that the system does not lower TDS.
The brand recommends replacing the elements every 6 months for optimal performance, though lifespan can vary with water quality. Avoid adding water to the upper chamber when the lower chamber is full, as Purewell warns this can cause leakage.
Choose it if you want a stainless gravity unit with a stand and no electricity. Skip it if you need TDS reduction or a low-profile dispenser.
AquaTru Classic Alkaline: Best for larger feed tanks
AquaTru Classic Alkaline: Best for larger feed tanks
- 1 gallon tap-water tank
- 14 x 12 x 14 in
- No plumbing
- 4-stage reverse osmosis
The 1 gallon tap-water tank gives you a larger refill supply than the smaller tank designs. Its 12 in width takes more counter space.
Pros
- No plumbing
- 1 gallon tap-water tank
- Alkaline version adds minerals
Cons
- Uses electricity
- Wider footprint than the narrowest options
AquaTru's 1 gallon tap-water tank gives you a larger source-water supply than the smaller tank designs. The unit measures 14 x 12 x 14 in, so check counter depth and cabinet height before choosing it.
This is a four-stage countertop RO system with no plumbing requirement. The alkaline version adds minerals, and AquaTru says its system is certified by IAPMO to NSF standards for reducing contaminants including fluoride, lead, chlorine and PFAS.
It needs an outlet and enough space to refill and remove the tank. At 12 in wide, it takes more counter width than DREO or Waterdrop.
Choose it if you want RO with a larger feed tank and mineral addition. Skip it if counter width is tight or you prefer a non-electric setup.
Philips Slim Countertop RO: Best for very tight counters
Philips Slim Countertop RO: Best for very tight counters
- 12.83 x 4.44 x 13.86 in
- 16.9 oz glass bottle
- No complex installation
- 12-month filter life
Its narrow width suits a tight counter, and the included glass bottle holds a single serving. Check the full footprint and refill routine before choosing it.
Pros
- Narrow 4.44 in width
- Included glass bottle
- No complex installation
Cons
- Small included bottle
- Uses electricity
Philips gives narrow-counter kitchens a countertop RO option with dimensions of 12.83 x 4.44 x 13.86 in. It includes a 16.9 oz glass bottle, which suits single servings more than storing a large supply.
The system uses five-stage reverse osmosis. Philips says its filter lasts up to 12 months and the unit is certified to NSF/ANSI/CAN 372 and NSF/ANSI 58; the filter core is also certified by SGS.
The small bottle means you'll refill or dispense more often if several people share it. Philips recommends replacing source water daily and using the built-in self-cleaning function monthly.
Choose it if narrow width matters most and a small bottle fits your routine. Skip it if you want a large pitcher or don't want daily tank care.
Bluevua ROPOT-Travel: Best for portable RO
Bluevua ROPOT-Travel: Best for portable RO
- 10 x 5 x 13.5 in
- 18 oz glass bottle
- No plumbing
- Self-cleaning function
The compact RO unit and included glass bottle suit small spaces where portability matters. It still needs an outlet and a source-water refill.
Pros
- Compact dimensions
- Glass bottle included
- Filter-life alert
Cons
- Uses electricity
- 18 oz bottle is a single-serving size
Bluevua's ROPOT-Travel measures 10 x 5 x 13.5 in and includes an 18 oz glass bottle. Its compact dimensions and handle support moving it between small living spaces, though it still needs an outlet.
The RO system includes UV and a self-cleaning function, plus a filter-life alert. Bluevua says its filter reduces substances including TDS, PFOA, PFOS, chlorine, fluoride, arsenic and lead; it also states a 3:1 filtered-to-waste ratio.
The bottle is sized for one serving, so this is less suited to filling a household pitcher at once. Compare the replacement filter plan with your daily water use before choosing it.
Choose it if portability and a small footprint matter more than batch storage. Skip it if you want a large reservoir or a non-electric filter.
How do you choose the best countertop water filter for an apartment?
Start by measuring the counter and cabinet clearance, then choose a filter method that fits your water goals and daily routine. A small unit can still be awkward if its tank is hard to remove or it blocks your main work area.
Will a countertop water filter fit under your cabinets?
Measure the width, depth and height, including room to lift or remove a tank. SimPure calls for 18 in of vertical clearance, while the Travel Berkey stands about 18 in tall when assembled.
Check for nearby outlets for powered units and keep the fill side reachable. For more context on sizes and setup, see our countertop water filter systems guide.
Should you choose reverse osmosis, carbon or gravity filtration?
Choose reverse osmosis if you want an RO process and accept an electric unit, feed-water refills and some reject water. Powered carbon systems such as Aquasana can retain naturally occurring minerals and do not reduce TDS.
Gravity systems avoid electricity and plumbing, but they take vertical space and filter water as it passes through. Our countertop RO systems comparison covers RO-specific tradeoffs, while the best countertop water purifiers guide compares broader purifier styles.
How much filtered water should be ready at once?
Think about how often you want to refill, not just the number of people in your home. DREO's 3 L tank and 1.1 L pitcher, AquaTru's 1 gallon feed tank, and the gravity systems' 1.5 to 1.58 gallon capacities store water in different ways.
A detachable pitcher makes chilled storage easy, while gravity dispensers hold a larger supply without an outlet. A small bottle may suit one person who drinks at the counter, but it can mean frequent refills for a shared apartment.
Which care routine fits your household?
Plan for filter replacement, cleaning and regular source-water changes. Aquasana recommends filter replacement every 300 gallons or 6 months, while SimPure gives separate schedules for its RO and post-mineral filters.
Keep the manual and replacement filter names accessible, especially if you expect to move. For model-specific Aquasana details, read our Aquasana countertop filter review.
What setup mistakes can make apartment use harder?
The most common mistake is measuring only the machine, without checking tank access, outlet position or clearance above the counter. Before you set it up, confirm you can remove every refillable part and still use the nearby workspace.
For electric filters, use a suitable outlet and follow the initial rinse or cleaning steps in the manual. For gravity systems, assemble the chambers carefully, prime elements where required and avoid overfilling; Purewell specifically warns against adding water when the lower chamber is full.
Don't assume every method has the same treatment goal. A system that does not lower TDS may still suit someone focused on other stated reductions, while a buyer seeking RO should choose an RO model and follow its care schedule.
Which countertop filter is the best fit for your apartment?
Pick DREO if you want compact electric RO with a pitcher and monitoring features. Choose Aquasana if you want powered filtration that retains minerals, or select British Berkefeld or Travel Berkey if you want a gravity system without an outlet.
If water storage matters most, choose Waterdrop for its detachable glass pitcher or AquaTru for its 1 gallon feed tank. For an apartment with very little counter width, compare Philips and Bluevua, then check whether their small bottles match how you drink water.
Before you decide, measure the counter and cabinet clearance, confirm outlet access and make sure the refill and filter schedule fits your routine. Our countertop water purifier comparison can help if you're still choosing between filtration styles.
Our top 3 picks at a glance
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Frequently asked questions
What is the best countertop water filter for an apartment?
The best fit depends on counter space, outlet access and how much water you want ready at once. DREO combines a slim footprint with a 3 L tank and pitcher.
A gravity model avoids electricity, while Aquasana filters without reducing TDS.
Measure counter depth and cabinet clearance before you choose.
Can I use a countertop water filter in a rental?
Yes. The models here sit on the counter and do not need plumbing connections, so they avoid permanent changes to a rental kitchen.
Check the unit's dimensions, outlet location and refill routine.
Keep enough space to remove tanks or pitchers, and follow the instructions for cleaning and filter changes.
Do countertop reverse osmosis filters need a drain?
These countertop RO models use a source-water tank rather than an under-sink drain connection. They still produce some reject water; DREO and Waterdrop state a 3:1 pure-to-drain ratio.
Empty and refill the tank as directed, and don't reuse reject water as drinking water.
Should I choose RO or gravity filtration for an apartment?
Choose countertop RO if you want an RO process and have an outlet and room to refill a feed tank. Choose gravity filtration if avoiding electricity and plumbing matters more, and you have space for a taller dispenser.
Compare treatment claims and maintenance for the exact model before deciding.
How much counter space should I leave?
Measure the unit's width, depth and height, then leave room to remove its tank, pitcher or upper chamber. A model that fits on paper can be awkward if it sits under a low cabinet or blocks a nearby work area.
For a compact comparison, see our countertop water purifier guide.
