Reverse Osmosis

Remove Up to 99% of Dissolved Solids & Common Contaminants

The Benefits

The perfect complement to a water refiner for the water-conscious family is a reverse osmosis drinking water system. Our exclusive line of reverse osmosis water purifier systems is specifically designed to provide clean, clear, better-tasting drinking water by removing more than 95% of dissolved solids, including many harmful contaminants. Now you can have bottle-quality water at your tap.

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Designer, Lead-Free Faucet
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Filter Protection Valve
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4.5 Gallon Storage Tank
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Leak Detector Water Shut Off Valve
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No tools required for filter change

4 Stage RO Filter by Sky

Keep your drinking water clean and safe with our Hydro Series RO System from Sky. It reduces the levels of lead, nitrates, cysts (cryptosporidium, giardia), arsenic, sodium and other contaminants commonly found in unfiltered tap water. The easy to install system offers you quality water at your fingertips 24 hours a day, 7 days a week, 365 days per year. The Hydro Series offers quick and easy filter and high-pressure membrane changes fast, convenient, and sanitary. The patented leak detection tray protects your home from unwanted leaks by automatically turning your system off when even the smallest amount of water is detected. Your family, friends, and pets will love the taste and enjoy all the benefits of healthy water.

Our Hydro Series RO line of water filtration systems from Sky is simple to install and even easier to maintain. We want each and every one of our customers to enjoy all the benefits of having their own mini water bottling plant underneath their sink. Our compact design and our Hydro Series RO filter change-outs easy and convenient. Simply install any one of our Hydro Series RO water filtration systems and enjoy all the benefits of cleaner, safer, tastier more refreshing water, filtered at the point of use not days, weeks, or even months before!
What contaminants are removed?
Keep your drinking water clean and safe with our 4 stage Reverse Osmosis System. Eliminate up to 99% of dissolved solids, chlorine, fluoride, microorganisms and heavy metals such as barium, cadmium, chromium, lead, and mercury while also reducing levels of nitrates, cysts (cryptosporidium, giardia), arsenic, sodium and other contaminants commonly found in unfiltered tap water.
How does 4 stage reverse osmosis work?

The Four Filtering Stages

Sediment Pre-Filter

The first stage of the 4-stage reverse osmosis water filtration system involves a sediment pre-filter. This pre-filter filters out the most basic of water contaminants, including dirt, dust, and other large, obvious debris.

This pre-filter is especially necessary for those who get their water from a well or a spring. Water that comes from these sources is almost guaranteed to be contaminated with at least small traces of dirt or sand.

Carbon Pre-Filter

The next step in a 4-stage reverse osmosis filtration system involves a carbon pre-filter. Eliminating several components from the water, including lead as well as tastes and odors that stem from the presence of chlorine, this stage serves to neutralize the water so that it tastes pure and free of chemicals.

Reverse Osmosis Membrane

The key stage in a 4-stage reverse osmosis water filtration system involves a reverse osmosis membrane. This membrane is capable of eliminating 95% of all dissolved solids from your water, softening it, and giving it as smooth a consistency as possible. After the water has passed through this membrane, it will be almost completely free of contaminants.

Post Carbon Filter

The last stage of a 4-stage reverse osmosis system makes use of a post-carbon filter. This filter is the last line of defense against any contaminants that might still be passing through your water after the first 3 steps of the process.

Known as the “polishing” filter, it remains any additional taste that may remain as a result of chlorine, lead, or iron. After this step has been completed, your water will be purified and ready for drinking.

Contact for Pricing

Ready to take the next step? Contact us to schedule a free water test and/or system quote and we'll get back to you as soon as possible. Want to speak to someone even sooner? Call us at (704) 286-1444. We look forward to serving you and your family.
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Verified Local Reviews For Marathon Resources, an Authorized Sky Home Innovations Dealer

"[They] came out to my home and tested the water. I have to say I was very surprised as to the results. But they were able to provide me with a easy, cost-effective solution. I have to tell you the process from start to finish was seamless. The installers were professional as well as the Customer service. They answered every question I gave them. I would recommend if you are thinking about having your water tested call Sky Home today!!!"  - Julie Noelle - 5-Star Google Review

Local Info

Charlotte Reverse Osmosis

Reverse Osmosis Charlotte

Clean Products, Clean Lifestyle. Reverse Osmosis Charlotte products from Marathon Resources – products that help protect the environment, your home, and your family. With over 40 years of water innovations & over 13 manufacturing partners across the nation.Diagram, desalination, water treatment, water filter, membrane, process, water purification, system, industrial, seawater, 5 stage, simple, home, commercial, installation, whole house, diy, drinking water, countertop, plant, flow, under sink, pressure, pump, schematic, filtration, water softener, 6 stage, connection, apec 15720 Brixham Hill Avenue Suite 300 Charlotte NC 28277 Phone Number: (704) 286-1444 Hours: Mon - Fri 9am - 5pmAbout Charlotte NC: Charlotte NC, named after King George III wife Queen Charlotte and therefore also known as “The Queen City” or “Crown Town”, is the most populous city in the U.S. state of North Carolina. Located in the Piedmont region, it is the county seat of Mecklenburg County. Its modern city center (aptly name “Uptown” because no matter which way you walk toward independence square, you’ll be moving gently upward) is home to the Levine Museum of the New South, hands-on science displays at Discovery Place, and the NASCAR Hall of Fame. First as a railroad junction and then as a cotton mill hub, today it is one of America’s largest banking centers and one of the nation’s fastest-growing metropolitan areas.Charlotte looks like a brand new city, but there’s a lot of history here. Its roots run deep in the Old South, way back before the American Revolution. Late in the Revolution, British General Cornwallis swept into town during the 1780 Battle of Charlotte and the Battle of Kings Mountain but soon wished he hadn’t. Local sharpshooters peppered his men mercilessly and as they departed it is said that Cornwallis wrote in his diary that Charlotte was a “hornet’s nest of rebellion.” Today, the hornet and hornet’s nest are popular civic symbols.Directions: Directions from Charlotte Douglas International Airport to Marathon Resources: Get on I-485 Outer from Old Dowd Rd and Wallace Neel Rd, Head south on Josh Birmingham Pkwy, Keep right to continue on Old Dowd Rd, At the traffic circle, take the 1st exit and stay on Old Dowd Rd, Continue onto Wallace Neel Rd, Turn right onto West Blvd, Turn left onto the I-485 Outer S ramp to Pineville, Follow I-485 Outer to US-521 S/Johnston Rd in Charlotte. Take exit 61 from I-485 Outer, Merge onto I-485 Outer, Use the right 2 lanes to take exit 61 for US-521/Johnston Rd, Continue on US-521 S/Johnston Rd to your destination, Use the right 3 lanes to turn right onto US-521 S/Johnston Rd, Use the right lane to turn right onto Brixham Hill Ave, Turn right, Destination will be on the right.

Reverse Osmosis System Reviews:

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Counties in/near Charlotte: Mecklenburg, Cabarrus, Guilford, Forsyth, Iredell, Union, Lancaster, York, Gaston, Catawba, LincolnCities in/near Charlotte: Charlotte, Huntersville, Matthews, Cornelius, Mint Hill, Pineville, Concord, Harrisburg, Mount Pleasant, Midland, Greensboro, Jamestown, Summerfield, Oak Ridge, McLeansville, Whitsett, Pleasant Garden, Stokesdale, Sedalia, Winston-Salem, Kernersville, Clemmons, Lewisville, Walkertown, Rural Hall, Pfafftown, Bethania, Tobaccoville, Statesville, Mooresville, Troutman, Harmony, Love Valley, Monroe, Waxhaw, Indian Trail, Wingate, Weddington, Wesley Chapel, Marvin, Mineral Springs, Marshville, Lake Park, Unionville, Hemby Bridge, Fairview, JAARS, Lancaster, Indian Land, Kershaw, Heath Springs, Van Wyck, Elgin, Springdale, Lancaster Mill, Irwin, York, Rock Hill, Fort Mill, Clover, Lake Wylie, Tega Cay, McConnells, Hickory Grove, Sharon, Lesslie, Newport, India Hook, Riverview, Gastonia, Belmont, Mount Holly, Dallas, Bessemer City, Cherryville, Stanley, Lowell, Cramerton, McAdenville, Ranlo, High Shoals, Spencer Mountain, South Gastonia, Dellview, Catabwa, Newton, Conover, Clremont, Maiden, Shersills Ford, Lake Norman of Catawba, Saint Stephens, Brookford, Mountain View, Lincolton, Denver, Iron Station, Lowesville, WestportZip Codes in/near Charlotte: 28202, 28203, 28204, 28205, 28206, 28207, 28208, 28209, 28210, 28211, 28212, 28213, 28214, 28215, 28216, 28217, 28226, 28227, 28244, 28246, 28254, 28262, 28269, 28270, 28273, 28277, 28278, 28280, 28281, 28282, 28284, 28285, 28287, 28201, 28218, 28219, 28220, 28221, 28222, 28224, 28229, 28230, 28231, 28232, 28233, 28234, 28235, 28236, 28237, 28241, 28247, 28256, 28260, 28265, 28266, 28271, 28272, 28275, 28297, 28299, 28223, 28228, 28242, 28243, 28253, 28255, 28258, 28263, 28274, 28288, 28289, 28290, 28296Neighborhoods in/near Charlotte: Center City: Uptown, First Ward, Second Ward, formerly known as Brooklyn, Third Ward, Fourth Ward, Elizabeth, Midtown. East Charlotte: Coventry Woods, Easthaven, Eastland, Grove Park, Hickory Grove, Hickory Ridge, Idlewild, Mint Hill, Oakhurst, Plaza Hills, Plaza-Midwood, Ravenwood, Reedy Creek, Shamrock, Sardis Woods, Sheffield Park, Sherwood Forest, Stonehaven, Windsor Park. North Charlotte: Belmont, College Downs, Croft, Derita, Hidden Valley, Graceshire, Highland Creek, Lockwood, Newell, Nevin, NoDa, Northlake, Mallard, Mineral Springs, Tryon Hills, University City, Villa Heights, Wilson Heights. South Charlotte: The Arboretum, Ayrsley, Ballantyne, Barclay Downs, Beverly Woods, Blakeney, Cameron Wood, Carmel, Chantilly, Cherry, Cotswold, Dilworth, Eastover, Grier Heights, Historic South End, Landsdowne, Madison Park, Myers Park, Nations Ford, Parkdale, Piper Glen, Quail Hollow, Raeburn, Sedgefield, SouthPark, Starmount, Steele Creek, Yorkshire. West Charlotte: Ashley Park, Berryhill, Biddleville, Historic Camp Greene, Clanton Park, Reid Park, Coulwood, Dixie, Enderly Park, Lincoln Heights, Mountain Island Village, Northwood, Oakview Terrace, Oakdale, Paw Creek/ "Tank Town", Revolution Park, Shopton, Shuffletown, Thomasboro/ Hoskins, Todd Park, University Park, Washington Heights, Wesley Heights, Wilmore, Wick City, Yorkmount Park.Frequently Asked Reverse Osmosis Questions:

What is reverse osmosis?

Reverse Osmosis (RO) is a water purification process that uses a partially permeable membrane to remove unwanted molecules and particles from drinking water.

What does reverse osmosis remove?

Reverse Osmosis removes common chemical contaminants such as:
  • sodium
  • chloride
  • copper
  • chromium
  • lead
Some systems may also reduce:
  • arsenic
  • fluoride
  • radium
  • sulfate
  • calcium
  • magnesium
  • potassium
  • nitrate
  • phosphorous

How much is reverse osmosis system?

A Reverse Osmosis System cost depends on the type of system you’re looking to purchase. Under sink reverse osmosis systems range from $250 to $7,500. Whole house reverse osmosis systems range from $1,000 – $18,000. System costs depend on a number of factors but are most closely tied to the amount of water that needs to be filtered per day.

How to remineralize water after reverse osmosis?

You can remineralize water after reverse osmosis filtering through various methods. Most modern reverse osmosis systems include a remineralization tank that takes care of adding minerals back into your water for you.

How to make reverse osmosis water alkaline?

You can make reverse osmosis water alkaline by adding alkaline minerals and raising the ph of your filtered water.

What is not removed by reverse osmosis?

What is not removed by reverse osmosis may surprise some. While RO filters will reduce a wide range of contaminants from your water, it will not remove some pesticides, solvents, volatile organic chemicals VOCs (like chlorine and radon), dissolved gases (ammonia, carbon dioxide, oxygen, hydrogen sulfide), and organic contaminants (such as formaldehyde, methanol, acetonitrile, methyl ethyl ketone, etc.).

How much water does reverse osmosis waste?

Reverse osmosis wastes on average about 4 gallons of water per gallon made. If you use 3 gallons a day for drinking, cooking and internal consumption, that means you will waste about 12 gallons, making a reverse osmosis system about 25% efficient. Comparatively, a washing machine and dishwasher use electricity and hot water (which takes energy to heat) and waste every gallon of water they use.