Replacement Filter Cartridges

The K5 is our most advanced reverse osmosis system ever. Certified to remove more contaminants than any other system, it can produce more than 40 gallons of water a day—nearly three times the industry average. And thanks to FlexFiltration, its multistage filtering system is fully customizable and expandable to fit your water’s specific filtration needs should they ever change. The K5 is protected by a 7-year warranty on all parts.
PCT filter
Products

Replacement Filter Cartridges

Hydrogen Enrichment

This reverse osmosis system includes advanced hydrogen enrichment, enhancing your drinking water with molecular hydrogen. This feature can offer potential health benefits, such as improved hydration and antioxidant properties, making your water not just clean, but also beneficial for your well-being.

Sleek and Modern Design

Featuring a sleek and modern design, this system adds an elegant touch to any kitchen. Its compact and stylish appearance ensures it integrates seamlessly under your sink, combining aesthetic appeal with practical functionality.

Easy Installation

The system is designed for easy installation, allowing for a quick and straightforward setup. Whether installed DIY or professionally, its user-friendly design makes the process simple, so you can start enjoying clean water with minimal effort. Maintenance and filter replacements are also designed to be hassle-free.

Durable Construction

Constructed with high-quality materials, this system is built to endure regular use and provide long-lasting performance. It comes with a 7-year warranty on all parts, ensuring reliability and durability, and giving you peace of mind with its long-term value.

Product

Replacement Filter

Explore our curated selection of cutting-edge water filtration products at Water2o, where innovation meets purity. From the K5 Drinking Water Station to the AquaKinetic and MACguard Filter, our range guarantees an unparalleled commitment to clean, healthy water for your home or business.
Product Comparison
capacity

Capacity

Compact, fits neatly under the sink
50-100 GPD
sketch

Design

Compact, fits neatly under the sink
Bulky and takes up counter space
test

Applications

Residential and commercial
Primarily residential
tools

Maintenance

Easy to install and maintain
Requires frequent filter changes
waterdrop

Water Taste

Superior, clean, and fresh-tasting water
Improved, but may not be as pure as reverse osmosis systems
best-price

Price

Competitive and offers great value for the features provided
Lower initial cost, but higher long-term maintenance costs
pathogen-testing

Contaminant Removal

99.9% of contaminants, including chlorine, limescale, and heavy metals
Removes chlorine and some impurities, but less effective against heavy metals and other contaminants
Product Comparison
capacity

Capacity

Compact, fits neatly under the sink
capacity

Capacity

50-100 GPD
sketch

Design

Compact, fits neatly under the sink
sketch

Design

Bulky and takes up counter space
test

Applications

Residential and commercial
test

Applications

Primarily residential
tools

Maintenance

Easy to install and maintain
tools

Maintenance

Requires frequent filter changes
waterdrop

Water Taste

Superior, clean, and fresh-tasting water
waterdrop

Water Taste

Improved, but may not be as pure as reverse osmosis systems
best-price

Price

Competitive and offers great value for the features provided
best-price

Price

Lower initial cost, but higher long-term maintenance costs
pathogen-testing

Contaminant Removal

99.9% of contaminants, including chlorine, limescale, and heavy metals
pathogen-testing

Contaminant Removal

Removes chlorine and some impurities, but less effective against heavy metals and other contaminants
free-delivery

Free Shipping & Returns

Take advantage of Free Shipping on every order, plus easy, no-cost returns.

guaranteed

Money Back Guarantee

Enjoy pure water confidently with our advanced filtration system, guaranteed 100% risk-free.

online-support

24/7 Online Support

Access round-the-clock online support, available 24/7 to assist you whenever you need it.

Highly rated by homeowners nationwide, Water2o’s filtration systems are trusted for delivering crystal-clear water and unmatched reliability.

Transform every drop in your home with our advanced solutions, ensuring clean, softened water for everything from daily hydration to sparkling dishes and softer laundry.

Highly rated by homeowners nationwide, Water2o’s filtration systems are trusted for delivering crystal-clear water and unmatched reliability.

Transform every drop in your home with our advanced solutions, ensuring clean, softened water for everything from daily hydration to sparkling dishes and softer laundry.
Products

Water2o's Premier Water Filtration Products.

Explore our curated selection of cutting-edge water filtration products at Water2o, where innovation meets purity. From the K5 Drinking Water Station to the AquaKinetic and MACguard Filter, our range guarantees an unparalleled commitment to clean, healthy water for your home or business.

We're Here to Meet All Your Water Filtration and Purification Needs.