Premier Plus Whole Home System

Built for bigger homes,
heavier demand.

Same Premier setup — whole-home filter, salt-based softener, and 6-stage reverse osmosis — with a dual-tank filter configuration that handles higher flow and runs longer between media services.

Sized for 5+ person households and larger homes. Dual-tank filter setup.

Smaller household? See Premier →
National Water Systems Premier Plus package: dual matte black Carbtrex filter tanks, salt brine softener, and 5-stage reverse osmosis

Why The Second Tank

More water through. Same filtration quality.

When two showers, the dishwasher, and the laundry are running at the same time, a single tank gets pushed past its design rate. That’s when filtration quality drops. Two tanks split the load.

Higher flow

Doubles service rate

Two Carbtrex tanks plumbed in parallel handle peak demand without throttling pressure. Your morning rush doesn’t bog down the system.

Longer life

Less media exhaustion

More media volume means each tank does less work for the same usage. Filter beds stay effective longer between scheduled service visits.

Same quality

Identical filtration spec

Both tanks use the same catalytic carbon and KDF-55 media as the single-tank Premier. Larger isn’t a different system — it’s more capacity of the same proven build.

Inside the Tank

Catalytic carbon + KDF‑55. Most competitors don’t use either.

Tap a layer on the tank to see what it does. The media inside is what does the work — most competitors use plain GAC and stop there.

NWS Carbtrex matte black filter tank with KDF-55 and catalytic carbon media layers

Layer 03 · Bulk of the media bed

Catalytic carbon (CarbTrex CAT)

03

What it does

  • Breaks down chloramines (the disinfectant most US municipalities now use)
  • Removes hydrogen sulfide (rotten-egg smell)
  • Reduces VOCs, pesticides, and disinfection byproducts
Layer 03 of 4

Inside the RO

Six stages between the municipal line and your glass.

Tap a number on the system to see what that stage does.

NWS reverse osmosis system showing storage tank, three pre-filter housings, RO membrane, and dedicated faucet

Stage 04 · 0.0001 micron TFC

RO membrane

04

What it does

  • Lead
  • Arsenic
  • PFAS
  • Fluoride
  • 99% of TDS
Stage 04 of 6

Compare The Field

Same category. Different system.

We mystery-shopped our biggest competitors. Here’s what they quoted, and what was actually inside the system they tried to sell us.

FeatureNWS Premier PlusLegacy BrandCheaper Competitor
Whole-home filter tank(s)TwoOneOne
Catalytic carbon (chloramines, H₂S)YesNoNo (basic GAC)
KDF-55 media (heavy metals)YesNoNo
Salt-based softener includedYesYesYes
Reverse osmosis includedYes+ $2,598 upsellSold separately
Tank shellsMatte black Carbtrex composite
Designed for5+ person households, larger homes

Legacy brand pricing reflects an in-home quote we received in 2026 for a comparable single-tank base system, plus a separately quoted RO upsell. The cheaper competitor category publishes whole-home softener features but does not list catalytic carbon or KDF-55, and offers reverse osmosis as a separately quoted product line.

Is Premier Plus Right For Me?

The right size matters more than the price.

An undersized tank gets exhausted quickly and leaves you with partial filtration. An oversized one is money you didn’t need to spend.

Premier – Single Tank

For 1–4 person households

  • Single Carbtrex filter tank with catalytic carbon + KDF-55
  • Whole-home softener
  • 6-stage reverse osmosis at the kitchen tap
  • Sized for everyday household demand
See Premier →

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Premier Plus – Dual Tank

For 5+ person households and larger homes

  • Two Carbtrex tanks for higher flow and longer media life
  • Same softener and 6-stage RO
  • Built for higher demand, more bathrooms, bigger homes
  • Less frequent media exhaustion under heavy use

100% Satisfaction Guarantee

We stand behind our installation workmanship for 12 months. If a covered installation issue needs attention, we’ll inspect and correct it at no additional labor charge. See your installation agreement for full terms.

Learn more about our RO system →

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