Finding the right alkaline water filter for your tap can feel overwhelming with so many options available. These systems are designed to raise the pH of your tap water, often by adding beneficial minerals, to create smoother-tasting, less acidic water. Whether you’re looking for a simple pitcher or a comprehensive under-sink solution, the right filter can be a convenient addition to your kitchen.
This roundup simplifies your search by highlighting ten of the best alkaline water filters. We’ve included a variety of types, from budget-friendly pitcher replacements to advanced reverse osmosis systems, ensuring there’s an option to suit every need and kitchen setup. Read on to find the perfect match for your home.
Our Recommended Alkaline Water Filters
- AQUA CREST Alkaline Water Filter for Brita® Pitchers
- Waterdrop Alkaline Electric Water Filter Pitcher
- pH Recharge Glass Alkaline Water Filter Dispenser
- Waterdrop Alkaline Water Filter Dispenser, Large 40-Cup
- Waterdrop Alkaline Water Filter Pitcher, 7-Cup, Pink
- Waterdrop Alkaline Water Filter Replacement (Pack of 3)
- iSpring RCC7AK Alkaline 6-Stage Reverse Osmosis System
- APEC Water Systems ROES-PH75 Alkaline Mineral pH+ System
- iSpring FA15 Alkaline Inline Water Filter Cartridge
- Express Water Under Sink Alkaline Water Filter with Faucet
AQUA CREST Alkaline Water Filter for Brita® Pitchers
For Brita pitcher owners, the AQUA CREST filter is a seamless upgrade to alkaline water. This replacement cartridge is designed to fit most standard Brita pitchers and dispensers, ensuring a perfect, leak-free seal just like the original. It enriches your tap water with essential minerals like calcium, magnesium, and potassium, raising the pH to support better hydration and overall well-being.
This filter is not only convenient but also reliable, having been certified by IAPMO R&T against NSF/ANSI Standard 42 for the reduction of specific contaminants and to NSF/ANSI 372 for lead content. It’s an excellent way to enhance your existing system without the need for a new appliance, making healthy hydration simple and affordable.
Waterdrop Alkaline Electric Water Filter Pitcher
Experience the convenience of modern hydration with the Waterdrop Alkaline Electric Pitcher. This countertop unit features a one-touch dispensing system, so you can get filtered water instantly without lifting or tilting a heavy pitcher. It’s perfect for busy households or offices where easy access to clean water is a priority.
The system is equipped with a long-lasting alkaline filter that increases the water’s pH by 1.5-2.5, providing mineralized water for up to 200 gallons. It’s important to note that this system is designed to retain beneficial minerals and does not lower the TDS value. With certifications for reducing contaminants like PFOA, PFOS, chlorine, and lead, it combines ease of use with effective filtration.
pH Recharge Glass Alkaline Water Filter Dispenser
If aesthetics are as important as function, the pH Recharge Glass Dispenser is a standout choice. Its elegant design, featuring a glass reservoir and wooden accents, makes it a beautiful addition to any kitchen counter or office space. Beyond its looks, it’s a highly functional unit with a large 8.5-liter capacity.
The included pH001 filter works to increase water pH up to 9 while filtering out unwanted particles and heavy metals. Each filter has a substantial lifespan, capable of purifying up to 264 gallons of water. This dispenser offers a perfect blend of style and substance for those who want alkaline water without compromising on design.
Waterdrop Alkaline Water Filter Dispenser, Large 40-Cup
Ideal for families or shared workspaces, this large 40-cup dispenser from Waterdrop minimizes the need for frequent refills. Its generous capacity ensures a steady supply of alkaline water for everyone. The system uses a multi-stage filtration process to effectively reduce chlorine, fluoride, and heavy metals like copper and mercury.
This model adds a variety of alkaline substances to your water, though the final pH level can vary based on your source water’s quality. Like other Waterdrop alkaline products, it retains beneficial minerals and does not reduce TDS. It’s a practical, high-capacity solution for consistent access to mineralized alkaline water.
Waterdrop Alkaline Water Filter Pitcher, 7-Cup, Pink
This compact and stylish pink pitcher from Waterdrop is perfect for smaller households or individuals. Its 7-cup capacity is manageable and space-efficient, while its six-stage filter technology works to reduce fluoride, chlorine, and heavy metals. Simultaneously, it enriches the water with minerals like zinc, calcium, and magnesium.
The filter increases the pH level of your water to between 8.0 and 9.5, supporting the health trends associated with alkaline water consumption. This system is designed to retain the beneficial minerals present in your water, so it does not lower the TDS value. It’s a simple and effective entry point into the world of alkaline water.
Waterdrop Alkaline Water Filter Replacement (Pack of 3)
For existing owners of Waterdrop pitchers and dispensers, this three-pack of replacement filters ensures a continuous supply of alkaline water. This new version is compatible with a wide range of Waterdrop models, making it a versatile and essential purchase for maintenance. Each filter lasts for about two months or 100 gallons.
Beyond providing healthy alkaline water with a pH of 8.0-9.5, this filter can also improve your daily beverages. The alkaline water it produces is known to smooth the flavor of coffee by reducing its acidity, resulting in a more balanced and enjoyable cup. It’s a simple way to enhance both your water and your coffee routine.
iSpring RCC7AK Alkaline 6-Stage Reverse Osmosis System
For the highest level of purification combined with remineralization, the iSpring RCC7AK is a top-tier under-sink solution. This NSF-certified 6-stage reverse osmosis system first removes up to 99% of over 1,000 contaminants, including lead, chlorine, and fluoride. Then, in its final stage, it adds back beneficial minerals.
The patent-pending remineralization filter restores calcium, magnesium, and other minerals, producing balanced, great-tasting alkaline water. A unique feature is its transparent first-stage housing, which allows you to visually monitor sediment buildup. With a patented top-mounted faucet design for easier installation, this system offers comprehensive water treatment.
APEC Water Systems ROES-PH75 Alkaline Mineral pH+ System
The APEC ROES-PH75 is a premium, ultra-safe reverse osmosis system engineered for exceptional performance and durability. This 6-stage system is built with high-quality components to ensure it provides reliable, high-purity drinking water for years to come. It effectively removes impurities, including heavy metals and fluoride, delivering water with up to 99% purity.
The system culminates in a premium calcium mineral stage that enhances the water’s alkalinity and taste. By adding back essential minerals, it turns the ultra-pure RO water into healthy, great-tasting alkaline water right from your dedicated faucet. It’s an investment in long-term water quality for your home.
iSpring FA15 Alkaline Inline Water Filter Cartridge
The iSpring FA15 is a versatile add-on solution for those who already have an under-sink water filter or reverse osmosis system. Standard RO systems can produce slightly acidic water by removing all minerals; this cartridge solves that problem. It is installed after your main filtration unit to restore beneficial minerals like calcium, magnesium, and potassium.
This NSF-certified inline filter balances the pH of your water, making it healthier and better-tasting. Its universal design with quick-connect fittings makes it a simple upgrade for nearly any existing setup. It’s a cost-effective way to get the benefits of alkaline water without replacing your entire filtration system.
Express Water Under Sink Alkaline Water Filter with Faucet
For a dedicated alkaline water solution without the complexity of reverse osmosis, an under-sink filter from Express Water is a excellent option. These systems are installed directly under your kitchen sink and connected to a separate faucet, providing on-demand alkaline water. They typically use a multi-stage process that includes sediment and carbon filtration followed by a mineral stage.
This setup raises the pH of your water and adds healthy minerals while filtering out common contaminants. It’s a great middle-ground for those who want more filtration power than a pitcher but do not require the intensive purification of an RO system. The included faucet gives you instant access to alkaline water for drinking and cooking.
Buying Guide: How to Pick the Right Alkaline Water Filter for Your Tap
Choosing the best alkaline water filter for your tap can feel a bit overwhelming with all the options out there. I’ve spent a lot of time looking into what makes these filters tick, and I want to share the key things I consider before making a purchase. It’s not just about the pH number; it’s about finding a system that fits your life and your water’s needs.
First, think about the filtration power. An alkaline water filter should do two main jobs: clean your water and then mineralize it. Look for systems that use a multi-stage process. A good combination often includes a sediment pre-filter to catch rust and dirt, an activated carbon block to remove chlorine, bad tastes, and chemicals, and then the crucial alkaline mineral filter. This final stage usually contains calcite, magnesium, and other minerals that raise the pH and add beneficial minerals back into your water. If you’re worried about contaminants like heavy metals, check for certifications from organizations like NSF International, which verify a filter’s claims.
Next, consider the installation and maintenance. How easy is it to set up? Many models are designed for simple DIY installation without needing a plumber. You just screw it onto your existing faucet or under the sink. Also, pay close attention to the filter lifespan. Cartridges need to be replaced periodically, and this is an ongoing cost. Some filters last for 3,000 gallons, while others might need a swap every 500. I always calculate the cost per gallon to understand the long-term investment. A filter with a longer life might have a higher upfront cost but be cheaper over time.
Finally, look at the features that matter to you. Do you want adjustable pH levels? Some of the more advanced systems let you select different alkalinity settings, which is great if multiple people in your household have different preferences. Also, check the flow rate. A slow filter can be frustrating when you’re just trying to fill a pot for pasta. I prefer a model that doesn’t slow down my kitchen routine too much. By focusing on filtration quality, ease of use, and the specific features you need, you can find one of the best alkaline water filters for taps that will provide great-tasting, mineral-rich water right from your sink.
Frequently Asked Questions
What is the ideal pH level for alkaline water from a tap filter?
Most health enthusiasts suggest that alkaline water with a pH between 8 and 9.5 is a good target for daily drinking. Our bodies naturally maintain a tightly regulated pH balance, so the goal of drinking alkaline water isn’t to drastically change your body’s pH, but to provide mineralized water that can help neutralize dietary acidity. It’s generally not recommended to consistently consume water with a very high pH (above 10) without consulting a doctor. Many of the best alkaline water filters for taps offer water within this 8-9.5 range.
Do alkaline water filters also remove contaminants?
A high-quality one absolutely should. This is a crucial point. A filter that only raises pH but doesn’t clean the water is not doing its full job. Look for filters that use a multi-stage process. The first stages typically involve sediment and activated carbon filtration, which are responsible for removing impurities like chlorine, chloramine, heavy metals, pesticides, and other organic compounds. The alkaline stage then adds the beneficial minerals. Always check the product’s specifications for what contaminants it is certified to reduce.
Are there any side effects to drinking alkaline water?
For most people, drinking alkaline water is safe and side effects are rare. Some individuals might experience minor digestive changes when they first start drinking it, as their body adjusts. However, people with kidney disease or those who are on medication that affects kidney function should be cautious. The kidneys are responsible for regulating the body’s mineral balance, and introducing a high amount of minerals through water could potentially be a problem for those with compromised kidney function. It’s always a good idea to talk to your healthcare provider if you have any underlying health conditions.
How often do I need to replace the filters?
The replacement frequency depends entirely on your water usage and the specific filter model. Most manufacturers provide an estimate based on time or gallons filtered. A common range is every 3 to 6 months, or after filtering 500 to 2,000 gallons of water. If you have a large family or use filtered water for all your cooking, you’ll hit that gallon limit faster. Many modern filters have a built-in indicator light that tells you when it’s time for a change, which I find incredibly helpful.
Can I install an alkaline water filter myself, or do I need a plumber?
The vast majority of countertop and faucet-mounted alkaline water filters are designed for easy do-it-yourself installation. They usually come with all the necessary connectors and can be attached to your standard kitchen faucet in minutes without any tools. Under-sink models are a bit more involved, as they require connecting to your cold water line and installing a separate faucet. While many handy homeowners can manage this, if you’re not comfortable with basic plumbing, hiring a professional might be worth the peace of mind.