Description
Structured Water Right at Your Kitchen Sink
The Natural Action HD-9 Under Sink Structured Water System provides a dedicated source of structured water at one of the most frequently used water locations in your home.
Installed under the kitchen sink on the cold-water line, the system introduces vortex-inspired movement as water flows through the unit before reaching your faucet.
The HD-9 operates passively, requiring no electricity, replacement cartridges or chemical additives. Once installed, there are no filters to routinely replace.
DESIGNED FOR EVERYDAY KITCHEN USE
Use structured water for:
• Drinking water
• Coffee and tea
• Cooking
• Washing fruits and vegetables
• Everyday food preparation
The under-sink design provides a permanent solution for customers who want Natural Action technology at their kitchen sink without installing a whole-home system.
KEY FEATURES
• Under-sink installation
• Installs on the cold-water line
• Passive vortex-inspired flow technology
• No electricity required
• No replacement filters or cartridges
• No chemical additives
• No routine filter maintenance
• Designed for everyday drinking and kitchen use
• Made in the USA
• 10-year limited manufacturer warranty
• 90-day satisfaction guarantee
INSTALLATION
The HD-9 installs underneath the sink on the cold-water supply line.
Natural Action recommends professional installation when the customer is unsure about making the plumbing connection.
Need Installation in Southern California?
Infinite Acqua Solutions offers professional water-treatment installation and service in select Southern California areas. Contact us to verify installation availability in your location.
SPECIFICATIONS
| Specification | Details |
|---|---|
| Manufacturer | Natural Action |
| Product | Under Sink Structured Water System |
| Model / SKU | HD-9-US |
| Installation | Under sink |
| Water Line | Cold-water line |
| Technology | Vortex-inspired flow |
| Electricity | Not required |
| Replacement Filters | None |
| Additives | None |
| Warranty | 10-year limited warranty |
| Guarantee | 90-day satisfaction guarantee |
| Made In | USA |
IMPORTANT: THIS IS NOT A WATER FILTER
The Natural Action HD-9 is a water-structuring system, not a filtration or purification system. It does not remove contaminants from your water.
If contaminant reduction is needed, the HD-9 can be incorporated with an appropriate drinking-water filtration or reverse-osmosis system.
ALREADY HAVE REVERSE OSMOSIS?
Pair Structured Water With Filtration
Already have a reverse-osmosis or drinking-water filtration system? Infinite Acqua Solutions can help determine how the Natural Action HD-9 can be incorporated into your existing water-treatment setup.
Contact IAS for system guidance.
WARRANTY & GUARANTEE
10-Year Limited Manufacturer Warranty
The HD-9 is backed by Natural Action’s 10-year limited warranty.
90-Day Satisfaction Guarantee
Natural Action currently offers a 90-day satisfaction guarantee, subject to the applicable return conditions.






Reviews
There are no reviews yet.