Under-Sink Drinking Water Filters

under-sink water filters for safe drinking water

Safety Zone Water Systems provides under-sink drinking water filters for those who aren’t able to implement a whole-house water treatment system.  If you drink bottled water at home or suspect your tap water is not safe, a Safety Zone drinking water filter would be perfect for you!

Options include reverse osmosis systems, our two-stage drinking water system for city water or our three-stage under-sink drinking water filter for well water.  Find out which system is best for you and request a quote today!

Safe and Clean Tap Water

Safety Zone Water Systems under-sink drinking water filters are not only low maintenance and made with utmost care in the USA.  They are also effective in removing or reducing chemicals and contaminants, making your water safe, clean and tasting great.

No Need to Buy Bottled Water Any More

Save money on bottled water.  Get fresh, clean and safe water right out of your sink with our under-sink drinking water filters!

safety zone water systems-no need for bottled water

Primary drinking water concerns

Reverse-Osmosis Filters

Reverse-osmosis (RO) is a phenomenal and cost-effective technology that dramatically improves the quality, taste, odor and color of your water.  They efficiently remove a large range of contaminants found in water, including dissolved metals, VOCs, PCBs, Nitrates, Arsenic, Fluoride, THMs, Lead, bacteria and other microorganisms. Systems include storage tank.  Faucet selection is additional.

These under-sink drinking water systems include a sediment pre-filter that traps suspended materials that could clog the RO filter, as well as a carbon pre-filter, which removes chlorine and other contaminants, before the water enters the RO membrane.  After the RO process, these systems also include a post-carbon filter to polish the water.

Reverse Osmosis 5-stage Water Filter

5-stage conventional reverse osmosis system
Reverse Osmosis 5-Stage System

Model: RO-5

The Safety Zone Water Systems conventional 5-stage reverse-osmosis system, with standard cartridges and membranes, provides a comprehensive under-sink drinking water filter.  This system features 5 unique water filtration stages that reduce or remove a broad range of contaminants and impurities, providing you safer, cleaner and better tasting water.  5-stages of filtration includes:

  1. Sediment filter: reduces dirt, sand and rust
  2. Carbon block filter: reduces chlorine, tastes and odors
  3. Carbon block filter: further removes chlorine taste and odors
  4. Reverse-osmosis membrane
  5. Granular activated carbon filter: final polishing process that enhances water taste

Reverse Osmosis 4-stage Quick-connect System

Model: RO-4 – Wall mount system

Model: RO-4-P – Wall mount system with non-electric pump*

*Faster water production when connected to an icemaker.

With a Safety Zone Water Systems Reverse Osmosis 4-Stage System, service calls aren’t required to simply change cartridges.  This superior system features quick-connect cartridges for easier and faster replacement.  To remove the cartridges, simply twist the cartridge 1/4 turn and pull down.  Water flow stops automatically.  Our system’s unique hinged bracket makes the task even easier.  Even YOU can do it!  

reverse osmosis 4 stage filtration system quick connect
Reverse Osmosis 4-Stage System
safety zone water systems most popular system


Removes / Reduces:

4-stage reverse osmosis system installed in the villages, florida
Installed Reverse Osmosis System


Working Pressure:

40-125 psi






<1.0 NTU


<300 ppm


0-3 ppm

Replacement Cartridges

Cartridge Type

Part Number (For Ordering)

Use (Removal)

Capacity (Gals.) TDS Reduction

Rated Life (Average Use)

Rated Life (Heavy Use)



Sediment, Particulate


12 months

6 months



Chlorine, Chemicals


12 months

6 months



Total Dissolved Solids

90%-95% Red.

3 years

2 years



Taste & Odors


12 months

6 months

Note: Capacities vary based on local water conditions, level of pre-filtration and use.

Cartridge Water Filters

Safety Zone Water Systems under-sink cartridge water filters are the easiest and simplest filtration option to make your water clean, safe and clear.  These under-sink drinking water filters are easy to change with a single turn, and when the filter is removed or improperly installed, an internal valve prevents leaks.  These filters are also a great option when there is low water pressure.  These filtration systems require and include a separate dedicated faucet.

Our cartridge water filters remove most contaminants found in water, including dissolved metals, VOCs, PCBs, Nitrates, Arsenic, Fluoride, THMs, Lead, bacteria and other microorganisms.

Two-stage Under-sink Filter for City Water

Model: USF-2

This drinking water filtration system is ideal for city water to remove Chlorine, chemicals, taste, odors and sediment.  This system includes a dedicated faucet.

Removes / Reduces:

2-stage under sink filters
Two-Stage Under-Sink Filter

Three-stage Under-sink Filter for Well Water

3-stage under sink filters
Three-Stage Under-Sink Filter

Model: USF-3

Our three-stage under sink filter is ideal for well water, rated to remove bacteria, sediment, taste, odors and harmful microorganisms. This system includes a dedicated faucet.

Removes / Reduces:

Single cartridge filter also available for under-sink or drinking water fountains.  Model: USF-1

High Capacity Under-Sink Filter

high capacity under sink filter cartridge
Three-Stage Under-Sink Filter

Model: USF-HCF

No dedicated faucet needed!  Safety Zone Water Systems high capacity under-sink filters provide an economical solution for city and municipal water supply. When attached to your cold water sink line, this filter provides clean and safe drinking water out of your sink.  Features a 10,000 gallon capacity!  Includes mounting bracket, head and filter cartridge.

The most economical way to enjoy safe, filtered water without the need to install a dedicated faucet.  Simply install the filter and enjoy filtered water from your existing cold water faucet.  Quick-change cartridges make replacement quick and easy.

Replacement Cartridge Model: USF-HCF-RC

Removes / Inhibits:

Easy Installation

Mount filter to cabinet, below sink. Next, remove existing braded tube from cold water angle stop valve and connect to the filter’s outlet to feed filtered water to the faucet. Connect the braded hose on the filter to the angle stop valve to feed filter.

high capacity under sink filter installation
high capacity under sink filter mounted

UV Purifier

Model: UV-12

No faucet needed!  Especially recommended for city water that provides insufficient chlorine for proper disinfection.  When attached to your water line, using ultraviolet lamp technology, this system provides chemical-free water treatment out of your sink by killing bacteria, cysts, viruses and other harmful microorganisms.  Provides easy purification for up to 12 GPM.

under sink uv water purifier
Under-Sink UV Purifier

Other Safety Zone Water Systems Solutions

whole house water softeners in the villages, florida

Water Softener Systems

Water softening systems and combination water conditioning and filtration systems.

water treatment systems supplier in the villages florida

City Water Systems

Water filtration systems most effective for city water.

whole house well water filtration systems

Well Water Systems

Water filtration systems most effective for well water.

Request a Quote

Safety Zone Water Systems provides quality products at affordable prices.  Our systems include installation by locally licensed and experienced professionals.  If you’re unsure which products are right for your application, we’ll help you make an informed decision.

the best water conditioner system company in the villages florida

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Not Seeing What You're Looking For?

View other products made by Safety Zone Water Systems.

Replacement Parts

Filters don’t last forever!  We strongly recommend using Safety Zone Water Systems replacement filters and replacement parts for compatibility, proper function and safety.  We have replacement filters and system components available!  For replacement parts, please call.