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Reverse Osmosis Systems

View our collection of quality SpiroPure reverse osmosis (RO) water filtration systems. Our RO systems can be used to provide cleaner, clearer water straight to your home, including for well water. These RO water filters are available as under-sink, countertop, and systems with remineralization. SpiroPure MineralPlus media offers the addition of lost beneficial minerals after the RO system process, providing better pH and flavor than regular RO water. We also offer a number of RO replacement filters, cartridges, and membranes.
SpiroPure SP-RO500

SpiroPure SP-RO500 Instant Hot Water Countertop RO with Remineralization

List Price: $475.82

Our Price: $237.91

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Replace cartridge every 12 months

Compact system with remineralizing media provides pure water at your chosen temp for instant hot water for coffee, tea, and more

SpiroPure RO3
  • 5 Stars
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SpiroPure 1000 GPD Tankless RO System with Remineralization SP-RO1000TL

List Price: $587.86

Our Price: $332.77

Save: $255.09!
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Replace filters every 12 months

Tankless RO requires less space, and supplies more filtered RO water instantly. Easier installation and maintenance.

SP-RO100MP Remineralization

SpiroPure SP-RO100MP RO Filter System Under Sink 6-Stage with Remineralization

List Price: $286.12

Our Price: $143.06

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No Faucet / Unbranded

6-stage under sink RO filter system with remineralization adds back lost beneficial minerals for better taste and pH

SpiroPure SP-RO100-BK

SpiroPure SP-RO100MP-BK 6-Stage Reverse Osmosis Filtration System with Faucet

List Price: $380.96

Our Price: $190.48

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Matte Black Air Gap Faucet

6-Stage RO system with remineralization for purer drinking water and ice, cooking and food prep, humidifiers, and more

SpiroPure SP-RO100-CM

SpiroPure SP-RO100MP-CM 6-Stage Reverse Osmosis Filtration System with Faucet

List Price: $364.20

Our Price: $182.10

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Chrome Air Gap Faucet

6-Stage RO system with remineralization for purer drinking water and ice, cooking and food prep, humidifiers, and more

SpiroPure SP-RO100-GD
  • 5 Stars
  • (1)

SpiroPure SP-RO100MP-GD 6-Stage Reverse Osmosis Filtration System with Faucet

List Price: $420.92

Our Price: $210.46

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Gold Air Gap Faucet

6-Stage RO system with remineralization great for purer drinking water and ice, cooking and food prep, humidifiers, and more

SpiroPure SP-RO100-NK

SpiroPure SP-RO100MP-NK 6-Stage Reverse Osmosis Filtration System with Faucet

List Price: $376.92

Our Price: $188.46

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Nickel Air Gap Faucet

6-Stage RO system with remineralization for purer drinking water and ice, cooking and food prep, humidifiers, and more

SpiroPure SP-RO300AQ

SpiroPure SP-RO300AQ 3-Stage Portable Apartment RO Water Filter System

List Price: $112.42

Our Price: $56.21

Save: $56.21!
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Replace filters every 6-12 months

Ideal small RO system for apartments and other portable uses for purer water for drinking, cooking, CPAP, baby formula, & more.

SpiroPure SP-RO400AQD

SpiroPure SP-RO400AQD 4-Stage Portable RO Water Filter with DI Filter for Aquariums

List Price: $125.28

Our Price: $62.64

Save: $62.64!
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Replace filters every 6-12 months

Small RO/DI System ideal for those with aquariums and reefs, spot-free cleaning for car washes and glass, CPAP, and more.

Types of Reverse Osmosis Filter Systems

SpiroPure offers three types of reverse osmosis filter systems to fit different households and installation preferences. Traditional tank-based under-sink systems store filtered water in a pressurized tank, delivering it on demand through a dedicated faucet for a reliable, no-electricity option at a lower upfront cost. Tankless reverse osmosis systems use a booster pump to produce filtered water on demand, offering a faster flow rate, better water efficiency. Countertop RO systems require no permanent installation, so are ideal for renters or those who want purified water without modifying their plumbing. All SpiroPure RO systems are available with MineralPlus remineralization media, which restores beneficial calcium and magnesium after filtration for improved pH and taste. For under-sink models, a dedicated RO drinking water faucet or combination faucet is required.

Find the Ideal RO System

All Filters offers a wide range of high-quality RO systems to suit your needs. The SpiroPure SP-RO500 provides instant, hot remineralized water, while the SpiroPure 1000 GPD Tankless RO system delivers high-flow filtered water with remineralization in a compact design. Our traditional under-sink reverse osmosis systems feature 6-stage filtration with remineralization and a variety of stylish air gap faucets. You can also choose portable countertop systems, which are ideal for apartments, aquariums, CPAP machines, and more. SpiroPure RO systems make it easy to enjoy clean, high-quality water with remineralization for better hydration.

Order RO Systems Online

Get cleaner, healthier water for drinking, cooking, food preparation, humidifiers, aquariums, and more with high-quality reverse osmosis water filtration systems from All Filters. Our dedicated customer support team is available seven days a week on Live Chat, phone, or you can submit a ticket, and we’ll solve your query promptly. Plus, SpiroPure products carry a satisfaction guarantee, giving you peace of mind when you place an order. Order reverse osmosis systems online and enjoy fast shipping, competitive prices, and expert customer support.

FAQs on Reverse Osmosis Systems

What is the best reverse osmosis system for home use?

The best reverse osmosis system for home use depends on your household's water consumption and kitchen setup. A tankless system is ideal if you want fast on-demand flow and have a grounded outlet. An inexpensive traditional tank system suits smaller households with lower peak demand. All SpiroPure systems are available with remineralization media for better-tasting, better-balanced water.
Water passes through a series of pre-filters that remove sediment and chlorine, then pressure forces water through a semi-permeable RO membrane that blocks dissolved contaminants at 0.0001 microns. Post-filters polish the finished water and remineralize.
An under-sink RO system stands or mounts inside your kitchen cabinet and connects to your cold water supply line. It delivers filtered water through a dedicated faucet installed on your countertop or sink. Most installations are DIY, connecting supply tubing, drilling into the drain line for wastewater, and installing the dedicated faucet into an existing hole.
Yes. Reverse osmosis is one of the more thoroughly tested water purification methods available for use at home. It's widely used for drinking water, cooking, baby formula preparation, aquariums, CPAP machines, and more. SpiroPure systems with remineralization restore beneficial minerals removed during the RO process, making the water more enjoyable for daily consumption.
For households concerned about bad tasting water or dissolved contaminants like lead, fluoride, arsenic, PFAS, and nitrates, a home RO system offers comprehensive purification that standard filters can't match. The ongoing cost of replacement filters is typically far lower than bottled water, and SpiroPure systems are priced to make quality RO filtration accessible.

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