Top 11 Best Alkaline Water Filters

If you’re at all interested in health and wellness, you’ve no doubt heard the excitement surrounding alkaline water and its benefits. You might even be excited about jumping on this health craze! But there’s a problem: there are a ton of products out there! Have no fear. This article will filter out the gunk (see what we did there?) and give you the top 11 alkaline water filters.

Why You Need an Alkaline Water Filter

Alkaline water has a higher pH level than normal water. The theory is that alkaline water will neutralize acid in your bloodstream and provide a myriad of health benefits. Studies are underway to validate claims that Alkaline water prevents cancer and heart disease, among other ailments.

If you’re looking to experiment with alkaline water, or if you suffer from high blood pressure, high cholesterol, acid reflux, or diabetes, buying an at-home water filter or ionizer is your best bet. It’s far cheaper than buying bottled alkaline water, it’s more convenient, and it ensures your source is as clean as possible. 


Here’s the naked truth: companies love jacking up the price of health-related items — especially if there’s a particularly high demand. Alkaline water is big right now. That means bottled water companies are going to skyrocket their shelf prices because they know health-conscious people are always prepared to pay more for better, cleaner, healthier goods. Alkaline water sells for outrageous prices. Some retailers are selling single bottlesfor around $10 USD, while six-packs can range from $20-$40! Yikes!

If you’re drinking your water regularly – and you should be! – then you can easily spend a small fortune on your water. It might seem more expensive in front-end cost, but the value over time means a home alkaline filter is way more bang for your buck. 


We lead busy lives! Especially those of us who are trying to stay fit. Between work, friend and family obligations, fitness upkeep, and hobbies, it can be a challenge to get everything done each day. Why add one more chore to your list by constantly having to refill your purified water via store-bought packs or bottles? This is in line with being cheaper, too. You’ll have to make time to go to the store frequently and buy more water, which can translate into higher gas or public transportation costs. That’s no fun — especially if the goal is to find the best, easiest solution!


There is a ton of research out there on the dangers of drinking bottled water. Whether it’s alkaline water or not, water bought in bottles can come with a whole host of problems! There’s always the potential for foreign chemicals to enter your water in the factory and at the collection site. Even worse: water in plastic bottles can become contaminated by plastic molecules and other nasty particulates just from sitting in a bottle. And, yes, some brands are definitely better than others.

Plus, plastic bottles aren’t very sustainable. Let’s not add more to the plastic garbage islands forming in our beautiful oceans, yeah? Buying a home water filter solves this problem immediately.

Whole House Water Filter
Balance Your Water with an Alkaline Water Filter

Types of Alkaline Water Filters

There can be a lot of confusion over alkaline filters. This is because lots of people use alkaline water filters and alkaline water ionizers as interchangeable terms. But they’re different. We’ll avoid all the technical mumbo-jumbo and make it easy: ionizers use electrolysis (zaps of electricity) to change the pH balance in regular water, making it alkaline water. Alkaline water filters run drinking water through mineral filters (and sometimes magnets). Filters usually don’t use electricity.

Aside from those two major categories, the placement of filters and ionizers can vary.

Whole Home Filters/Ionizers

Whole-home filters, or “whole-house filters,” are designed to filter or ionize the water coming into your entire home. They hook up to your house’s plumbing, between the water intake and the pipes branching to the different places in your home. These are expensive and big. They also require professional and experienced installation. 

* Note: There are almost no whole-home alkaline ionizers. Whole-home systems are almost always filters, but some do come with alkalizing components.

Under-the-Counter Filters/Ionizers

Under-the-counter (or UTC) filters/ionizers are much smaller than whole-home units. They only filter the water at a local source (i.e.: whatever sink to which they’re attached). These units are installed in a single sink’s plumbing and filter only the water at the sink. They’re much cheaper than whole-home units and require significantly less expertise, but they obviously don’t filter or ionize as much water. There are a few Reverse Osmosis filters that have alkaline components as well.

Countertop Filters/Ionizers

Most (but not all) countertop filters/ionizers attach directly to a sink’s tap. There are some stand-alone units that can sit on the counter, but those A. aren’t very convenient; B. take up a ton of space; and C. don’t ionizer or filter very much water. If you’re looking for a countertop filter – which requires basically no plumbing experience or professional installation – then you should consider a unit that plugs right into the tap.

Pitchers, Bottles, Etc.

There are smaller ionizers and filters designed for very limited use, usually found in the shape of stand-alone (“drop-in”) filters or bottles. These units are much cheaper than the units that plug directly into plumbing, but they also have a smaller range of use. They’re also not very convenient. Still, these kinds of filters can be great for those trying to filter water on a budget, campers, those on the go, or people in a pinch!

Top 11 Best Alkaline Water Filters

Below is a list of our top 11 choices for alkaline filters. The list is not in any specific order. We’re showcasing a variety of products for you to research, so you’ll see all sorts of ionizers and purifiers. But this is not an exhaustive list of products. As with any health product or new buy, make sure you’re doing your own thorough research!

Aqua Ionizer Deluxe 9.0 Aqua-Ionizer Pro Alkaline Water Ionizer Machine

This bad-boy is the king of alkaline water ionizers. Perhaps the most impressive quality of this unit is its ability to be installed either as an under-the-counter or countertop unit. (If you want to install it under-the-counter, you’ll need to order a special installation kit from the manufacturer.) It’s a hefty machine with seven different settings, ensuring you get exactly the pH balance you’re looking for. It’s also equipped with a built-in charcoal filter. There’s barely anything bad to say about this unit other than price. In this case, you really do get what you pay for. Other than that, just be careful about maintaining the charcoal filter. If you don’t change it for a while, you can expect your water to have a bit of a charcoal aftertaste.

Aqua Ionizer Deluxe 9.0 Aqua-Ionizer Pro Alkaline Water Ionizer Machine
  • HAPPY, HEALTHY & HYDRATED: Alkaline Water may help detoxify the body, increase energy & hydration
  • MORE THAN DRINKING WATER: 7 water settings allow you to adjust the alkalinity & add antioxidants
  • FILTRATION AT ITS FINEST: Advanced filtration technology purifies & ionizes over 4000 liters

iSpring RCC7AK 6-Stage High Capacity Under Sink System with Alkaline Remineralization

This unit is considerably cheaper than the first entry on the list. It’s installed as an under-the-sink system with three chamber filters. That means it has an excellent level of filtration, plus it’s equipped with a reverse osmosis and alkaline remineralization filter. You will definitely get clean water out of this system. Unfortunately, because of its size, you can also expect it to take up quite a bit of space under the sink. Make sure you’re doing your proper measurements if you’re looking to buy this beast.

iSpring RCC7AK, NSF Certified 75 GPD, Alkaline 6-Stage Reverse Osmosis System, pH+ Remineralization RO Water Filter System Under Sink, Superb Taste Drinking Water Filter
  • Certified to NSF/ANSI 58, 6-Stage Alkaline Remineralization Layered Filtration - Exclusively designed to restore the natural alkalinity and mineral balance of water; this reliable and ultra-safe Reverse Osmosis (RO) water filtration system converts your water into clean, pure and healthy drinking water by removing up to 99% of over 1,000 harmful contaminants like PFAS (includes PFOA and PFOS), chlorine, fluoride, lead (removes up to 98%), arsenic, asbestos, calcium, sodium and more.
  • GREAT-TASTING MINERAL WATER - A standard 5 stage RO system produces slightly acidic water with a pH of 7. 0 or below because the RO membrane removes not only harmful pollutants but also a few helpful minerals. The iSpring RCC7AK Reverse Osmosis water filter includes an additional 6th stage - an Alkaline Remineralization filter which restores healthy minerals and produces a balanced alkalinity, which gives your water a more natural taste than regular 5 stage RO water filter.
  • LOW MAINTENANCE - Transparent 1st stage housing for easy visual inspection. Three extra long life pre-filters to remove large contaminants and protect RO membrane. Ultra fine (RO) filter to remove contaminants down to 0. 0001 microns; fine GAC filter to provide final polishing to the purified water and (AK) filter to finally restore just the right proportion of healthy minerals and a natural alkaline balance. The end result is great-tasting bottled-water quality.

Express Water Alkaline Reverse Osmosis Filtration System

It can be hard to find an affordable system that also does a fine job. This Express Water reverse osmosis system is one of those rarities. This under-the-sink behemoth is pleasantly color-coded, taking all the guesswork out of installation and maintenance. It’s specifically designed for people with no plumbing experience at all! There are only two drawbacks to this system. First, it’s big, which means you need to ensure you have the space necessary to install it. Second, the pressure gauge can sometimes tend to malfunction (read: lie), so make sure you keep an eye on it. The manufacturer supplies wonderful customer service and will help you replace the gauge in the event of a malfunction.

EXPRESS WATER ROALK10DCG 10 Stage Reverse Osmosis Alkaline Water Filtration System - Under Sink Water Filter with Faucet and Tank, 100 GPD
  • Reverse Osmosis Water Filter: Experience what water should taste like with the Express Water reverse osmosis water filtration system filters up to 99.99% of Lead, Chlorine, Fluoride, Nitrates, Calcium, Arsenic, and more
  • Alkaline Water Filter: Express Water’s Alkaline Water Filter with Active Mineral Technology adds Calcium, Potassium, Magnesium, and other minerals to your water
  • Under Sink Water Filter: Don’t waste money on professional installation. Express Water’s quick and easy-to-understand design means you can install and understand everything about your new water filtration system

AQUASPREE Exclusive 7 Stage Alkaline Filter

This one’s pretty cool. If you aren’t sure about installations and manuals and springing a leak all over your kitchen, you might want to consider a countertop unit like this AQUASPREE. It’s essentially a water cooler that you plop right on top of your counter! You pour in the water, the unit uses a gravity-filter to purify and alkalize the water, and then holds the purified water for when you’re ready! You simply put a cup to the filler and you’ve got alkaline water! It can take up a bit of space on the counter, but it looks neat and it works great. Remember to soak this unit’s filters before your first use.

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Apex Countertop Drinking Water Filter, Alkaline

This unit continues with the theme of simple and effective. Apex is a trusted brand in water purification — and for good reason. They make reliable products. This filter is a countertop unit that attaches directly to your tap. It comes with a clear casing that allows you to gauge the health of your water and your filter at a glance. This filter has a particularly long life and is relatively easy to install. Units like this can suffer from mildew accumulation in the filter housing because air bubbles form during installation. Simply attach the housing over the filter upside-down to solve this problem.

APEX MR-1050 Countertop Water Filter, 5 Stage Mineral pH Alkaline Easy Install Faucet Water Filter - Reduces Heavy Metals, Bad Taste and Up to 99% of Chlorine - Clear
  • REDUCES CONTAMINANTS IN TAP WATER: The APEX Clear Countertop Alkaline Drinking Water Filter System removes contaminants commonly found in tap water, like chlorine, sediment, and radon. It also filters Cryptosporidium, and Giardia cysts, which contribute to water-borne illnesses. APEX water filters remove mercury and harmful pesticides to give you delicious, sparkling, fresh clean drinking water.
  • CONNECTS TO STANDARD FAUCETS: APEX’s Clear countertop water filter system has been designed to conveniently sit right on your kitchen counter. It is simple to install, and connects easily to most standard kitchen faucets. All the necessary hardware is included for easy do-it-yourself installation. Simply remove the aerator screen from the faucet and screw on the collar of the APEX diverter valve.
  • COST-EFFECTIVE WATER FILTER: By using an APEX countertop alkaline water filter, you can stop wasting money on small disposable bottles of water that just get thrown away when empty. Buying bottled water for daily home consumption gets expensive and tedious. You don’t have to lug heavy water jugs or cases home to enjoy fresh clean drinking water. APEX water filters are the solution.

APEX EXPRT MR-2050 Quality Dual Countertop Drinking Water Filter

If you want just a little more bang for your buck in countertop faucet filters, check out this sister unit from Apex. This unit is essentially identical to the unit above. However, this one comes with two filters instead of one. That means cleaner, better-tasting water. It also means more work when it comes time to change filters, so bear that in mind. And, of course, it’ll take up more space on the counter.

APEX EXPRT MR-2050 Dual Countertop Water Filter, Carbon and Mineral pH Alkaline Water Filter, Easy Install Faucet Water Filter - Reduces Heavy Metals, Bad Taste and Up to 99% of Chlorine - Clear
  • Very easy to install 💧 No need to drill holes or hire a plumber for this water filtration system. Simple twist-on installation makes it easy to set up. Fits most standard faucets with a 55/64" thread. Comes with four additional faucet adapters. If none of the water purifier adapters fit your faucet, APEX EXPRT technical support will try to diagnose and provide additional adapters to complete your installation and get you your filtered water.
  • Better tasting water 💧 The five stages of this sink water filter effectively reduce the most common impurities found in tap water, such as sediments, hydrogen sulfide, pesticides, chlorine, chloramine, and other harmful chemicals. It also reduces heavy metals such as lead, iron, and mercury to ensure the water tastes great and is clean & healthy. *El mejor filtro de agua para cocina.
  • Much better water quality 💧 Once the water has been filtered with KDF-55 (heavy metal reduction media) and a charcoal water filter (coconut shell, healthy minerals such as calcium, magnesium, and potassium are added to enhance the water's pH level to alkalinity. ⭐ NOTE: This countertop water filter system does NOT lower TDS or PPM readings. If TDS or PPM removal is desired, a reverse osmosis drinking water filter is required. * filtros de agua para tomar de cocina no baja TDS o PPM ⭐

Pure Hydration Next Generation Alkaline Antioxidant Water Ionizer

This countertop system is valued most for its simplicity in use. There’s really not much to it. Pour in the water that needs purifying, push a button, and watch this system dispense delicious alkaline water! There can be some upkeep issues with this one, though. It comes with four filters — great for water cleanliness but not-so-great when it’s time to change the filters. Still, this system will last a long time before its filters need changing.

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iSpring WKB32B WGB32B 3-Stage Whole House Water Filtration System

It never hurts to go full-tilt if doing so won’t break the bank. This is a whole-house system designed to filter all the water coming out of all your taps. This kind of system is obviously convenient because it requires much less regular maintenance and it’s great for families. The filters on this unit are designed to filter 100,000 gallons of water… which is a LOT! Look into these kinds of filters if you’ve got the money to do so. Really, it’s worth it. Professional installation or plumbing experience will be required.

Important: While this system is not meant to alkaline water, it can filter the harmful contaminates out of you water. You would need a separate alkaline water filter, but could be assured the water is also purified. This is mentioned in our list as you can purchase a less expense alkaline filter, such as a pitcher, to compliment your clean water for a great combination!

iSpring Whole House Water Filter System, Highly Reduces Sediment, Taste, Odor, and up to 99% Chlorine, 3-Stage w/ 20-Inch Sediment and Carbon Block Filters, Model: WGB32B, 1" Inlet/Outlet
  • Chlorine-Free, Pure Water: Shield your family and appliances with the WGB32B whole house water filter—eradicating up to 99% of chlorine, along with sediments, rust, tastes, odors, herbicides, and more for clean, odor-free water.
  • Easy DIY Setup: Utilize our manual and YouTube guides for straightforward installation. Featuring 1” NPT inlet/outlet and 20” x 4.5” filters, this whole house water filtration system maintains robust water flow (up to 15 GPM) with minimal maintenance.
  • Premium Filtration: The first stage sediment filter reaches 5 microns, while the second and third stage CTO Carbon Block filters use quality coconut shell carbon—tested by a third-party to meet NSF/ANSI standards. The system has a 100,000-gallon capacity for a year's supply.

Invigorated Water Deepa Restore Alkaline Pitcher

Not everyone can afford expensive filtration units and some people are just looking for quick, simple solutions. We’ve got you covered too! This unit is a great filter pitcher. You can simply fill it up with water and sit it in the refrigerator. It’ll filter your water every time you pour a glass! It comes with seven-stage filtration, a helpful indicator light to show the filter quality, and an extra filter for when the original needs changing.

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pH ACTIVE Insulated Water Bottle

Do you just want something compact and portable? Here’s your buy. This pH Active water bottle is durable stainless steel. It comes with its own filter packets. You simply drop the filter packet into the water bottle, fill it up, and head out for a good hike or a long run. This bottle will keep your water clean and cool. You’ll need to keep buying packets for continued water filtration.

Invigorated Water pH Active Insulated Water Bottle - Filtered Alkaline Water Bottle - Stainless Steel Water Bottle - Includes Alkaline Water Filter, Plus Sports Gym Lid - Double Walled Metal - 650ml
  • NO MORE PLASTIC - with the brand new pH ACTIVE Insulated Stainless Steel Alkaline Water Filter Bottle by Invigorated Water. Ergonomic & Stylish design, including 2 lid options.
  • pH ACTIVE DELIVERS HIGH pH ALKALINE WATER, ANYWHERE, ANYTIME so you’ll have naturally filtered water at the office, gym, while traveling, shopping, hiking, playing sports, & on holiday. Helping you & your loved ones stay healthy, happy & INVIGORATED.
  • INCLUDES MULTI-STAGE ‘pH ON-THE-GO’ ALKALINE WATER FILTER (search B076H1MXP5) - increasing water pH and -ORP, improving taste and smell, adding minerals including zinc, magnesium, selenium & iron, eliminating heavy metals like arsenic, mercury, copper & lead, greatly reduce fluoride, chlorine & chloramine.

GoFiltr Alkaline – 9.5ph Ionized Mineral Alkaline Water Bottle Filter

Now here’s a neat take! Do you want a filter bottle but you already have a favorite water bottle? Check out this portable filter. This GoFiltr water bottle filter is designed to be used in any standard-sized water bottle. You just drop it right in and go. Turn your favorite bottle into an alkaline filter! It obviously won’t last as long as the bigger systems, but it’s very convenient.

GOFILTR Alkaline Water Infuser - 9.5 pH + Electrolytes for Any Water Bottle/Small Pitcher, 750 Refills / 3 Months, Ionized Mineral Water Infuser (1 Pack)
  • CREATE 9.5-PH MINERAL IONIZED ALKALINE WATER IN MINUTES - GOFILTR will mineralize, ionize, alkalize and transform your regular water into a refreshing mineral ionized alkaline water in just a few minutes, whether it's purified or tap. Each infuser is designed to last up to 3 months or 750 refills, increasing the pH up to 9.5.
  • WORKS WITH WHAT YOU HAVE - Turn any pitcher, reusable water bottle, sport water bottle, insulated water bottle, glass bottle, flask bottle, tumbler, water jug, hydration pack with an opening 1” or larger into alkaline water machine system. Simply drop and keep refilling, it's that simple.
  • CRAFTED IN LOS ANGELES - Every GOFILTR alkaline water infuser is crafted in Los Angeles, California. Our passionate team dedicated over 12,000 hours to create our mineral sioFuse formula that produces well balanced ionized alkaline water.


Choosing the right water filter can be confusing and stressful. Hopefully, this article cleared some of that up for you! Always make sure to do your full research when making a purchase like this. You always want to ensure you’re getting everything you need. Use this list to guide your decision. We’ve done the work to make sure we offered the very best. 

Whatever you decide, always take care of your body. Give it everything it needs and do your best to make healthy choices! If you suffer from a serious medical condition, always consult with your doctor or primary care provider before making any serious dietary changes.

Thank you for reading! Now go out there and find your dream alkaline water filter!


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