Puragain Water
5-Stage Reverse Osmosis

The gold standard in drinking water purification.

Removes chlorine, lead, PFAS, bacteria, pesticides, and 99% of all harmful contaminants. Right from your kitchen faucet.

$26/month*Zero Down · Free Install · 7-Year Warranty
5-Stage Reverse Osmosis System by Puragain Water

Why Reverse Osmosis?

99% Contaminant Removal

Independently tested to remove the widest range of harmful substances from your tap water.

Removes Lead, PFAS & More

Targets lead, arsenic, PFAS, fluoride, bacteria, and pesticides found in municipal water.

Crystal Clear Taste

No more plastic bottles. Enjoy unlimited purified water straight from your kitchen faucet.

Compact Under-Sink Install

Fits neatly under your kitchen sink with no visible changes to your countertop or cabinetry.

Reverse osmosis system detail showing filtration components

99%

Contaminant Removal

5

Purification Stages

60 min

Professional Install

7 yr

Full Warranty

5 Stages of Purification

Each stage targets a different class of contaminant, so nothing makes it through to your glass.

1

Sediment Pre-Filter

Captures sand, dirt, rust, and large particles to protect the downstream filters and extend their life.

2

Carbon Block Filter

Absorbs chlorine, volatile organic compounds (VOCs), and chemical tastes that affect water quality.

3

Carbon Block Filter

A second carbon stage for deeper chemical removal, ensuring maximum chlorine and odor elimination.

4

RO Membrane

The heart of the system. Forces water through a semi-permeable membrane, rejecting 99% of dissolved contaminants.

5

Post Carbon Polishing Filter

A final polish that removes any residual taste or odor, delivering crisp, clean water to your faucet.

Engineered for purity. Designed to disappear.

The entire system tucks under your kitchen sink. No bulky equipment on display, no noise, no hassle. Just a sleek dedicated faucet on your countertop and pure water on demand.

  • Compact design fits standard cabinets
  • Dedicated chrome faucet included
  • Pressurized tank for instant flow
Under-sink reverse osmosis system installation detail
Family enjoying purified water from their Puragain reverse osmosis system

Water your family can trust.

Every glass from your RO system is free from the chemicals, heavy metals, and microorganisms that standard filtration leaves behind. Cooking, drinking, baby formula, coffee: it all starts with pure water.

Schedule a free consultation

Lifetime Service Included

Every plan comes with professional maintenance for the life of your system. No surprise bills, no hidden fees.

Annual Water Testing

We test your water every year to ensure your system is performing at peak efficiency.

Unlimited Service Calls

Something not right? We come out at no extra charge, as many times as you need.

Annual Maintenance

Filter replacements, sanitization, and full system check-up included every year.

Everything Included

5-Stage Reverse Osmosis

$26/month*
  • 5-Stage RO system & dedicated faucet
  • Professional installation
  • Free filter-change service (filters purchased separately)
  • Annual water quality testing
  • Unlimited service calls
  • 7-year warranty on all parts
Get Started Today

*With approved credit. 7-year term. Price does not include tax. See full terms at checkout.

Frequently Asked Questions

What exactly does reverse osmosis remove?

Our 5-stage RO system removes up to 99% of dissolved contaminants including lead, arsenic, fluoride, PFAS (forever chemicals), chlorine, bacteria, pesticides, nitrates, and hundreds of other harmful substances. It's the most thorough purification method available for home use.

How long does installation take?

Professional installation typically takes 60 to 90 minutes. Our certified technician handles everything. We install the system under your kitchen sink and add a dedicated faucet to your countertop.

Does it affect water pressure?

The RO system uses its own pressurized storage tank, so you get strong, consistent flow from the dedicated faucet. Your existing kitchen faucet and all other fixtures in the home are completely unaffected.

How often do filters need replacing?

Depending on your water, filters are typically replaced every one to two years. Your lifetime service covers the labor at no charge: our technician comes to your home, swaps the filters, sanitizes the system, and tests your water. You purchase the replacement filters, and we review the options with you after testing.

Is everything covered under lifetime service?

Your lifetime service covers annual maintenance visits, water testing, and unlimited service calls with no labor or service-call fees. The only ongoing cost is the replacement filters themselves. Damage caused by misuse or unauthorized modifications is not covered.

Ready for water you can finally trust?

Get started with reverse osmosis. Zero down, free installation, lifetime service.