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  • Under Sink 4 Stage Reverse Osmosis | Ampac USA

Under Sink 4 Stage Reverse Osmosis | Ampac USA

The Ampac™ 4 Stage Reverse Osmosis System is designed for High Capacity 18 to 36 GPD (gallons per day) high usage, this system can be installed where it will feed more than one faucet. It can be equipped with an optional high flow delivery pump that greatly increases flow rate. The Ampac™ Five Stage System features a 5-micron sediment filter, pre-coconut shell carbon, pre-extruded carbon block, TFC membrane and an In-Line GAC post filter.

STAGE 1: 5 Micron Sediment Particulate Filter Remove dirt, sediment, sand and other physical particles.

STAGE 2: Granular Activated Carbon (GAC) Reduces chemicals, improve Taste, Odor, and Improve Clarity.

STAGE 3: R/O Membrane. Reduces 93-98% of Total Dissolved Solids, that may be in your potable water supply.

STAGE 4: Post Carbon Filter. A polishing process that removes taste and odors that can occur after Reverse Osmosis Process developing in the storage tank.

All Ampac USA Reverse Osmosis Systems comes with the following accessories:

Reverse Osmosis Storage Tank

3.2 Gallon Water Storage Tank

Reverse Osmosis Lead Free Faucet

Lead Free (Prop 65) Chrome Faucet

Reverse Osmosis John Guest Tank Ball Valve

John Guest Tank Ball Valve

Reverse Osmosis Drain Saddle

Drain Saddle Valve

Reverse Osmosis Feed Adapter

Water Feed Adapter

Reverse Osmosis Installation Manual

Installation and Operations Manual

How can I find out what is in my tap water?

You can contact your local health department to have your water tested for hardness,

Nitrates and Total Dissolved Solids (TDS). Or, we will be happy to test your water for of charge!


7949 Deering Ave., Canoga Park, CA 91304 USA

Toll Free: (877) 611-8530

International: (818) 436-2351

Fax: (818) 654-6178

Capacity: Gallons Per Day 24 GPD
Capacity: Liters Per Day 90 LPD
Recovery 50%
Salt Rejection % 99.2%
Tank Size Included 3.2 Gal.
Filter Stages
Number of Filter Stages 3
Number of Membrane Elements 1
Replacement Filter Kit Item No. AP4K
Replacement Membrane Item No. TW24

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Under Sink 4 Stage Reverse Osmosis | Ampac USA

  • Brand: Ampac USA
  • Model: APRO4
  • Availability: In Stock
  • $239.95

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Tags: 4 Stage reverse osmosis, RO 4 Stage

AP4K - Replacement Filter Kit for 4 Stage Reverse Osmosis

AP4K - Replacement Filter Kit for 4 Stage Reverse Osmosis

Ampac USA Standard Replacement Filter Set for Ampac USA and Other Standard 4 Stage Reverse Osmosis Systems. AP4K - Replacement Filter Kit for 4 Stage Reverse Osmosis, RO 1) Sediment Pre-Filter 5 Micron 2) CTO/2 Extruded Carbon Block 5 Micron Pre-Filter 3) Inline GAC Granular Activated Coco..