Reverse Osmosis Drinking System
360 CrystalGuard RO
The only under-sink reverse osmosis system proudly made in the USA. Pristine, great-tasting water straight from your tap, with no bottled water required.
Backed by 260 verified reviews and lifetime US-based technical support.
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Why 360 CrystalGuard
An Upgrade You Can Taste, Built the Way Water Systems Should Be
Most reverse osmosis systems are imported and built to a price. The 360 CrystalGuard RO is engineered in the USA with premium components and double O-ring filtration, so you get cleaner water and hardware that lasts.
Eliminate Bottled Water
Unlimited great-tasting water on demand from BPA-free components. Cancel the deliveries and the plastic for good.
Made in the USA
Built in the USA with 98%+ American-sourced parts and premium quality control on every unit.
Double O-Ring Seal
A dual O-ring design ensures 100% filtration with zero bypass, so every drop passes through the media, not around it.
DIY-Friendly Install
Color-coded tubing and quick-connect fittings make setup simple, with lifetime phone guidance if you want a hand.
Reduces the Contaminants You Care About Most
The RO membrane rejects dissolved solids and a wide range of contaminants, from heavy metals to microorganisms. Verified reduction rates below.
Algae 99.99%
Mold 99.99%
Amoebic Cyst 99.99%
Asbestos 99.00%
Mercury 98.00%
Aluminum 98.00%
Zinc 97.00%
Atrazine 95.00%
Nickel 95.00%
Nitrate 89.00%
Reduction percentages reflect RO membrane performance under standard test conditions. Module resins are FDA and NSF compliant. Actual results vary with local water chemistry.
Six Stages of Protection
Customized, Multi-Stage Filtration
Each stage targets a specific class of contaminant, working together to deliver clean, balanced, great-tasting water. Choose 4, 5, or 6 stages to match your water.
Stage 1 · Sediment Filter
Removes dirt, sand, rust, and particulates, protecting the carbon filters and membrane downstream.
Stage 2 · Carbon Block Filter
Reduces chlorine, chemicals, and VOCs. A dense carbon structure traps contaminants as water passes through.
Stage 3 · Sub-Micron Carbon Block
Targets chloramine, PFAS, and advanced chemicals while extending the life and performance of the RO membrane.
Stage 4 · RO Membrane
Removes heavy metals, fluoride, nitrates, and pharmaceuticals and rejects dissolved solids at the molecular level.
Stage 5 · Post-Carbon Polishing
A final polish that removes residual odors and perfects the taste of every glass.
Stage 6 · Alkaline Remineralization (Optional)
Adds calcium, magnesium, and potassium, raises pH to 8.5 to 10.0, infuses molecular hydrogen, and uses far-infrared media to restructure water for better absorption.
5-Year Warranty, Lifetime Support
Your tank and valves are covered by a 5-year warranty, backed by lifetime US-based technical support. Call a real expert whenever you need one.
American-Made, NSF and FDA Compliant
The RO module is 100% American-made using FDA and NSF compliant resins, built in the USA with 98%+ American-sourced parts.
Ready to Pour Better Water?
Join thousands of households who traded bottled water for pristine, American-made reverse osmosis at the turn of a tap.
Add to CartThe American-Made Difference
More Reasons to Choose 360 CrystalGuard
01
Premium Filter Quality
American-made cartridges use high-grade media, not the cheap filters found in imported systems.
02
Real Expert Support
Lifetime phone guidance from US-based specialists, versus the limited or nonexistent help offered by overseas brands.
03
Longer Warranty
A 5-year warranty on tank and valves, where most imported systems offer just one year.
04
Zero-Bypass Filtration
Our double O-ring seal removes the bypass risk common to lower-grade imported builds.
Better for You, Better for the Planet
0
Bottled Water
No more cases to buy, haul, or store. Unlimited water straight from your tap.
6
Stages of Filtration
Up to six stages of American-made filtration in one compact under-sink unit.
98%+
American-Sourced Parts
Built in the USA with premium components and quality control on every system.
Specifications+
Installation and What's in the Box+
- RO Module, 100% American-made with FDA and NSF compliant resins
- 4.5-gallon storage tank with base for upright or horizontal placement
- Sediment, carbon, and polishing filter cartridges (American-made)
- Filter wrench and Teflon tape
- Color-coded tubing and tube cutter
- Lead-free ceramic disc faucet, made in the USA
- Premium inlet and tank valves with 5-year warranty
- 100 GPD high-output TFC RO membrane
- 1/4 inch quick-connect drain saddle
- FREE TDS meter
Questions and Answers+
Reviews+
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Everything you need to get the most from your 360 CrystalGuard RO.
Replacement Filter Pack (5-Stage)
American-made sediment, carbon, and polishing cartridges. Save 25% with Auto-Refill.
Pricing coming soon
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Alkaline Remineralization Filter (Stage 6)
Adds calcium, magnesium, and potassium, raises pH, and infuses molecular hydrogen.
Request Your Quote
View ProductFREE TDS Meter
Test your water quality before and after filtration. Included free with every system.
Included Free
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