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Aquonyx water systems

Our Water Treatment Product Catalog

Aquonyx filtration, softening and reverse osmosis systems, professionally installed by licensed contractors in Phoenix, South Florida and Orlando, with a lifetime warranty on whole-home systems.

Systems by AQUONYX

Licensed & insured Lifetime warranty on whole-home systems Built in the USA

A USA Water Company technician beside an installed whole-home system
The systems we install

Three systems, matched to your test results

We recommend a system only after testing your water, so you get what your home actually needs rather than the biggest thing on the truck.

Black Diamond Carbon Filter
Whole-house filtration

Black Diamond Carbon Filter

A deep bed of activated carbon that reduces chlorine, chloramine, taste, odor and many organic contaminants at every tap in the house. Choice of coconut shell or catalytic carbon, in 1.0, 1.5 and 2.0 cubic foot sizes. No salt, no added chemicals.

  • Coconut shell or catalytic carbon media
  • Available in 1.0, 1.5 and 2.0 cubic foot sizes
  • Reduces chlorine, chloramine, taste, odor and many organics
  • No salt and no added chemicals
  • Built in the USA, backed by a lifetime warranty
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Diamond Soft Water Softener
Water softener

Diamond Soft Water Softener

A metered softener that removes the calcium and magnesium behind hard-water scale, protecting your water heater, fixtures and appliances. Available in 30,000, 45,000 and 60,000 grain capacities, with a separate brine tank.

  • Available in 30,000, 45,000 and 60,000 grain capacities
  • Metered control valve, regenerates only when needed
  • Protects water heaters, fixtures and appliances from scale
  • Includes a separate brine tank
  • Backed by a lifetime warranty
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Elevated Drinking System
Drinking water

Elevated Drinking System

A five-stage reverse osmosis system at your kitchen sink, from a 5 micron sediment pre-filter through the membrane to a remineralization stage that puts calcium and magnesium back. Quiet, non-electric, with a 3-gallon storage tank.

  • Five stages: sediment, carbon block, RO membrane, remineralization, polishing
  • Removes dissolved contaminants down to 0.0001 micron
  • Puts calcium and magnesium back and balances pH
  • Non-electric permeate pump, 3-gallon storage tank
  • Quick-change filters yearly, membrane about every two years
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How it works

Look inside the Black Diamond

Open the tank up and see what each part does, from the carbon at the top down to the distributor at the bottom.

Drag to turn it

3D model of the Black Diamond carbon filter. Shown in cutaway for illustration, not to scale.

Step 1 of 6

Outside

One tank, one job

The Black Diamond is a single tank in a black jacket with a metered control valve on top. It plumbs into the main line where water enters the house, so every tap downstream gets filtered water. Built in the USA and backed by a lifetime warranty.

Step 2 of 6

Look inside

A deep bed of media

Cut the tank open and it is mostly media. A deep bed of activated carbon fills the upper two thirds, resting on a gravel underbedding that keeps the bed level and stops media washing out.

Step 3 of 6

Carbon media

Coconut shell or catalytic

The carbon is the part doing the work. Coconut shell carbon handles chlorine, taste and odor. Catalytic carbon is the choice when your utility uses chloramine, which ordinary carbon struggles with. Available in 1.0, 1.5 and 2.0 cubic foot beds.

Step 4 of 6

Gravel underbedding

Keeps the bed where it belongs

Under the carbon sits a layer of graded gravel. It spreads the flow evenly across the bottom of the bed so water cannot channel down one side, and it stops fine media reaching the distributor.

Step 5 of 6

Riser and distributor

How the water travels

Water enters at the top, works down through the carbon, and is collected by the distributor basket at the bottom of the riser tube. It then travels back up the riser and out to the house.

Step 6 of 6

Control valve

Backwashes only when needed

The metered valve on top counts the water you actually use. It backwashes the bed on a schedule driven by that number rather than a timer, which lifts packed media, flushes out what the carbon has caught, and resets the bed.

See the full specifications

Not Sure Which System is Right for You?

Book a free in-home water test and our specialists will walk you through your results and options for your water, home size, and budget, with no pressure and no obligation.

Why Aquonyx

Built in America, sized for your house

Four decades of manufacturing

Built on decades of US water-treatment manufacturing, so parts are still available years later and the valve platform is one any trained technician can service.

Made in the USA

Every system comes off a domestic production floor where valves are staged, tanks are filled with media, and finished units are tested on live, plumbed water lines.

Lifetime warranty

Qualifying systems across the Aquonyx catalog, including softeners and carbon filtration, carry a lifetime limited manufacturer warranty.

The Aquonyx production floor, with stock racked along one wall and assembly benches down the middle
The Aquonyx production floor, where valves are staged and tanks are filled with media. Photo: Aquonyx.
The Aquonyx test lab, with softeners and filters plumbed into a wall of copper lines
The in-house test lab, where finished units run on live, plumbed water lines. Photo: Aquonyx.