6 ranges to choose from
-
Reverse Osmosis Water Filtration Systems
Reverse osmosis water filtration removes 95 to 99 percent of dissolved contaminants including fluoride, nitrates, lead, arsenic, chlorine, chloramines, and total dissolved solids, through membrane separation with no chemicals beyond routine filter changes.
- Models
- 11
- Output
- 100 – 3,000 GPD
-
Water Softeners & Conditioners
Need a bulk/commercial system? See our commercial & industrial water softeners page for restaurants, hotels, and factories.
- Models
- 6
-
Drinking Water Filters
A countertop drinking water filter is the low-cost, no-plumbing way to get cleaner water straight from your kitchen tap.
- Models
- 6
-
Home UV Systems
A UV water sterilizer disinfects your water with ultraviolet light and no chemicals, inactivating bacteria, viruses, and other waterborne pathogens as water passes through the reactor.
- Models
- 17
-
Accessories & Other
AMPAC USA supplies RO accessories, replacement filters, and spare parts built to fit AMPAC systems and every standard model on the market.
- Models
- 24
-
Whole House Water Purification Systems
A whole house water filter treats all incoming water at the main supply line, so every tap, shower, and appliance gets cleaner water.
- Models
- 7
Also available
-
WSE-IM10
Iron Manganese Removal Filter 10.0
The AMPAC USA Iron Manganese Removal Filter 10.0 offers a comprehensive solution for households plagued by common water quality issues.
View specifications -
WSE-IM08
Iron Manganese Removal Filter 8.0
The AMPAC USA Iron Manganese Removal Filter 8.0, WSE-IM08, offers a comprehensive solution for improving water quality in residential and commercial settings.
View specifications -
15820121
Pura Big Boy Ultra Violet Water Filter BB2
The Pura Big Boy Ultra Violet Water Filter UV BB2-110, UVBB-2-110 by AMPAC USA offers a powerful and reliable solution for water disinfection, ensuring that your water supply is free from harmful microorganisms.
View specifications -
15630131
Pura Ultra Violet Disinfection System UVB3-EPCB
The Pura Ultra Violet Disinfection System UVB3-EPCB from AMPAC USA offers a comprehensive solution for achieving purified and disinfected water in a variety of settings.
View specifications -
WSE-TN08
Tannin Removal Filter
The AMPAC USA Tannin Removal Filter, model WSE-TN08, offers an effective and reliable solution for eliminating tannins from your water supply.
View specifications -
MC-11
MC-11 Acid Membrane Cleaner for Scale
The MC-11 Acid Membrane Cleaner for Scale from AMPAC USA is an essential solution designed to restore and maintain the optimal performance of your water purification systems.
View specifications -
VT1
Viqua VT1 (120v)
The Viqua VT1 Copper Series UV System, a 120v UV disinfectant, offers a reliable and chemical-free solution for ensuring the safety of your drinking water.
View specifications -
APRO5
Reverse Osmosis Drinking Water Filter - 5 Stage
The AMPAC USA 5 Stage Reverse Osmosis Drinking Water Filter delivers pristine drinking water directly from the tap.
View specifications
About Residential Reverse Osmosis Systems
Sizing a system? Send your flow rate and a feed-water analysis, and an AMPAC engineer will work out the configuration with you.
Residential reverse osmosis systems reduce dissolved solids, heavy metals, nitrates, chlorine, and most contaminants that pass through standard carbon filters. AMPAC's residential RO line covers both under-sink point-of-use (POU) systems for drinking and cooking water and whole-house point-of-entry (POE) systems for full-home coverage.
Not sure which system fits your home?
Use our free RO System Calculators to estimate sizing, recovery rate, and operating cost in minutes — no sales call required.
Under-Sink vs Whole-House RO
Most households start with an under-sink system � it installs in 1-2 hours under the kitchen sink, connects to a dedicated faucet, and produces 50-200 GPD of purified water stored in a pressure tank. That is enough for drinking, cooking, and a refrigerator ice line. Whole-house RO makes sense when source TDS is high enough to affect appliances and fixtures, or when the water source (well, agricultural-area aquifer) has contamination that should not contact skin during bathing.
What TDS Reduction Means in Practice
TDS (total dissolved solids) is measured in mg/L or ppm. The EPA secondary standard for drinking water is 500 mg/L; WHO guidance suggests 300 mg/L or lower for taste. Most tap water in the American Southwest runs 400-800 mg/L. A quality RO system with FILMTEC membranes will reduce TDS by up to 99%, delivering product water typically in the 10-50 mg/L range. That is water that tastes different enough that most people notice within a week.
When to Upgrade from a Pitcher Filter
Pitcher filters (activated carbon) reduce chlorine taste and some volatile organics � they do not meaningfully reduce TDS, nitrates, heavy metals, fluoride, or dissolved salts. If your tap water TDS is above 300 mg/L, or if a water test shows nitrates above 5 mg/L or lead above 5 ppb, a pitcher is not adequate. Under-sink RO is the next step up.
Pitcher Filter vs Under-Sink RO vs Whole House RO
| Feature | Pitcher Filter | Under-Sink RO | Whole House RO |
|---|---|---|---|
| TDS Reduction | Minimal (<15%) | Up to 99% | Up to 99% |
| Chlorine Removal | Yes | Yes | Yes |
| Nitrate / Heavy Metal Removal | No | Yes | Yes |
| Flow Rate | ~0.5 GPH (fill time) | 50-200 GPD stored | 300-1,500+ GPD |
| Covers Showers / Laundry | No | No | Yes |
| Installation Required | None | Under-sink plumbing | Whole-house plumbing |
| Typical Cost Range | $25-$60 | $300-$1,200 | $1,500-$5,000+ |
AMPAC residential systems use FILMTEC membranes and are manufactured in the USA with a 2-year parts warranty. If you are choosing between system types or need help sizing based on a water test, contact AMPAC directly � system selection takes about five minutes with a recent water report in hand.
Frequently Asked Questions
What's the difference between the residential RO systems listed here and a water softener?
Reverse osmosis removes dissolved solids, chlorine, and contaminants from your drinking water at the point of use, producing purified water for drinking and cooking. A water softener treats your whole home's water supply to remove hardness minerals like calcium and magnesium. Many households use both together: a softener for the whole house and an RO system at the kitchen tap.
How do I choose between an under-sink RO system and a whole-house filter?
Under-sink RO systems treat water at a single tap, ideal if you mainly want purified water for drinking and cooking. Whole-house filters treat all water entering your home, protecting plumbing and appliances and improving water at every fixture. If your water quality concerns extend beyond drinking water, a whole-house system paired with an RO system at the kitchen sink gives the most complete coverage.
Do these residential systems require professional installation?
Most AMPAC USA residential systems are designed for straightforward installation with basic plumbing skills, and include instructions for connecting to a standard water line. Whole-house systems and softeners involve larger connections and a drain line, so many homeowners choose professional installation for those, while under-sink RO and countertop units are commonly self-installed.
How often do residential filters and membranes need replacement?
Replacement intervals vary by system and household water usage. Pre-filters in RO systems typically need replacement every 6-12 months, RO membranes every 2-3 years, and UV lamps annually. AMPAC USA's replacement filter kits are sized to match each system so maintenance stays predictable.
Can I mix and match systems, like a softener with an RO system and a UV disinfection unit?
Yes. Softeners, RO systems, and UV disinfection units address different water quality issues and are commonly combined: a softener protects plumbing and appliances from scale, an RO system purifies drinking water, and a UV unit disinfects against bacteria and pathogens. AMPAC USA's residential product lines are designed to work together as a complete home water treatment solution.