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How to set up C100 Water Filter?HQ LifeTech Store

Hydrofast Cold Water Reverse Osmosis Water Filter Countertop, Remineralization & pH Balance UV 6 Stage RO Filtration System, Portable Water Purifier, 3:1 Pure to Drain, No Installation, C100

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About this item

  • 【Instantly Enjoy Cool Water 】Say goodbye to fridge waits! C100 cold water filter system delivers 50°F crystal-clear ice water straight—instantly frosty sips. No need to worry about the problem of the refrigerator contaminating pure water, and reduced risk of secondary contamination. (Press the [Cold] button for 5 seconds to enjoy ice water at a minimum of 50℉)
  • 【6-Stage Filtration with Remineralization】The Hydrofast C100 utilizes advanced reverse osmosis technology, removing 99.9% of harmful contaminants including lead, arsenic, chlorine, fluoride, PFOA/PFOS, and dissolved solids (TDS). Post-filtration remineralization adds essential minerals like calcium (Ca²⁺), magnesium (Mg²⁺), and potassium (K⁺) to enhance water taste while improving hydration
  • 【Side Tank Design for Easy Water Replacement】The water purifier countertop adopts a side tank, which makes water changing simple and convenient, while the traditional system uses a rear-mounted water tank, which is difficult to access. The side tank reduces the depth of the water purifier, even on a narrow desktop; it can be easily put down and is suitable for most desktops
  • 【Less Wastewater Output, Greener life】This 5-in-1 reverse osmosis filtration system has 3:1 Pure to Drain. One filter can produce 528 gallons of pure water, saving 4000+ plastic waste or bottled water annually. In addition, wastewater can be retained for various household purposes, such as watering plants and mopping the floor, which can reduce water waste
  • 【No Installation Required, More Convenient Countertop Design】This countertop reverse osmosis requires no plumbing or installation. Simply plug this portable water purifier into any power source, fill it with water, and start using it. Measuring 15H x 12.16L x 11W inches, it's suitable for home, apartment, living room, kitchen, or RV use
  • 【How to Enjoy Purified Water】After activating the device, press the Set Volume button to select your desired water volume (3.5/8.7/16/21oz). Then press the Dispense button to dispense the selected volume. The device has a memory function; the next time you use it, simply press the Set Volume button and then the Dispense button to dispense the same volume as previously. To adjust the water volume, press the Set Volume (+_) button to adjust the water volume
› See more product details

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From the brand

Product description

C100 ROWater Filter
C100 Reverse Osmosis Water Filter

Other Reverse Osmosis Water Filters from Hydrofast

C100 Cold Water Purifier

B100 pH+ Water Purifier

UB200T Upgraded RO System

UB200D Upgraded RO System

Feature
Cold Water & Alkaline pH+ Alkaline pH+ Under Sink & Smart faucet Tankless & 1 TDS Meter
Flow Rate
100 GPD 100 GPD 800 GPD 800 GPD
Pure to Drain Rate
3:1 3:1 2.5:1 2.5:1
Filtration Stages
6-Stage with UV 6-Stage with UV & ALK Filter 9-Stage with Reduce TDS 9-Stage with Reduce TDS
Filter Lifespan
9-12 Mths 9-12 Mths PCF-12Mths, RO-24Mths PCF-12Mths, RO-24Mths
Dimensions (inch)
12.16 x 11 x 15 12.4 x 11 x 15 14.8 x 5.1 x 15.6 15.6 x 5.1 x 14.8

Product information

Technical Details

Brand ‎Hydrofast
Special Feature ‎6-Stage Filtration with Remineralization & pH Balance, Built In TDS Meter, Change Filter Indicator, Cold Water RO Water Filter, Reduce TDS, Self Cleaning
Product Dimensions ‎12.16"L x 11"W x 15"H
Package Information ‎Dispenser
Installation Type ‎Countertop
Power Source ‎Corded Electric
Item Weight ‎5.9 Kilograms
Model Name ‎C100
Lower Temperature Rating ‎10 Degrees Fahrenheit
Maximum Flow Rate ‎0.2 Liters Per Minute
Operating Pressure Range ‎58-116 PSI
Upper Temperature Rating ‎100.4 Degrees Fahrenheit
Supported Water TDS Level Maximum (PPM) ‎500
Manufacturer ‎Hydrofast
Water Saving Percentage ‎75
Filter Life Cycle ‎12 Months
Item Weight ‎12.98 pounds
ASIN ‎B0FQNQ22LT
Item model number ‎C100
Date First Available ‎September 9, 2025

Additional Information

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Hydrofast Cold Water Reverse Osmosis Water Filter Countertop, Remineralization & pH Balance UV 6 Stage RO Filtration System, Portable Water Purifier, 3:1 Pure to Drain, No Installation, C100

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What's in the box

  • Water Purifier, Filter, User Guide

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    Next page

    Product Summary: Hydrofast Cold Water Reverse Osmosis Water Filter Countertop, Remineralization & pH Balance UV 6 Stage RO Filtration System, Portable Water Purifier, 3:1 Pure to Drain, No Installation, C100

    From Hydrofast

    50+ bought in past month

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    About this Item

    • 【Instantly Enjoy Cool Water 】Say goodbye to fridge waits! C100 cold water filter system delivers 50°F crystal-clear ice water straight—instantly frosty sips. No need to worry about the problem of the refrigerator contaminating pure water, and reduced risk of secondary contamination. (Press the [Cold] button for 5 seconds to enjoy ice water at a minimum of 50℉)
    • 【6-Stage Filtration with Remineralization】The Hydrofast C100 utilizes advanced reverse osmosis technology, removing 99.9% of harmful contaminants including lead, arsenic, chlorine, fluoride, PFOA/PFOS, and dissolved solids (TDS). Post-filtration remineralization adds essential minerals like calcium (Ca²⁺), magnesium (Mg²⁺), and potassium (K⁺) to enhance water taste while improving hydration
    • 【Side Tank Design for Easy Water Replacement】The water purifier countertop adopts a side tank, which makes water changing simple and convenient, while the traditional system uses a rear-mounted water tank, which is difficult to access. The side tank reduces the depth of the water purifier, even on a narrow desktop; it can be easily put down and is suitable for most desktops
    • 【Less Wastewater Output, Greener life】This 5-in-1 reverse osmosis filtration system has 3:1 Pure to Drain. One filter can produce 528 gallons of pure water, saving 4000+ plastic waste or bottled water annually. In addition, wastewater can be retained for various household purposes, such as watering plants and mopping the floor, which can reduce water waste
    • 【No Installation Required, More Convenient Countertop Design】This countertop reverse osmosis requires no plumbing or installation. Simply plug this portable water purifier into any power source, fill it with water, and start using it. Measuring 15H x 12.16L x 11W inches, it's suitable for home, apartment, living room, kitchen, or RV use
    • 【How to Enjoy Purified Water】After activating the device, press the Set Volume button to select your desired water volume (3.5/8.7/16/21oz). Then press the Dispense button to dispense the selected volume. The device has a memory function; the next time you use it, simply press the Set Volume button and then the Dispense button to dispense the same volume as previously. To adjust the water volume, press the Set Volume (+_) button to adjust the water volume

    Product Description

    Hydrofast C100 Countertop RO Water Filter System: Pure, Cold, and Refreshing Hydration Anytime, Anywhere

    Meet the Hydrofast C100 – the ultimate RO -powered water purification solution designed for health-conscious families and quality-driven lifestyles. Engineered with a 6-stage filtration system featuring UV and remineralization technology, this compact countertop unit delivers crisp, Cold 10°C water on demand. Perfect for kitchens, RVs, offices, and nurseries, its installation-free design ensures clean drinking water is always within reach.

    Why Choose the Hydrofast C100?

    RO (Reverse Osmosis) Excellence: Our advanced 6-stage filtration eliminates 99% of contaminants – including heavy metals, and chlorine. The final remineralization stage adds essential minerals like calcium and magnesium, creating balanced, great-tasting water that’s safe for children and adults alike.

    Instant Cold Water Feature: Crave a chilled drink? The C100’s innovative cooling system produces refreshing 10°C water instantly, eliminating the need for ice cubes or bulky pitchers. Ideal for making healthy beverages, baby formula, or post-workout hydration.

    Smart, User-Friendly Design

    The touchscreen displays real-time TDS levels, filter lifespan, and water temperature. Receive automatic filter change alerts and enjoy extended filter longevity thanks to the self-cleaning RO membrane. Four preset dispensing modes (100ml/250ml/450ml/600ml) simplify filling bottles, pots, or coffee makers.

    With its side-load 4L tank and space-saving vertical design, the C100 fits seamlessly on countertops or RV tabletops. The industry-leading 3:1 pure-to-drain ratio makes it 50% more water-efficient than conventional RO systems.

    Perfect for Every Hydration Need

    • Parents: Prepare safe formula with mineral-rich water
    • Home Chefs: Enhance soups and beverages with pure water
    • Travelers: Enjoy contaminant-free water in RVs/campers
    • Office Users: Replace plastic bottles with sustainable hydration

    Included Components: Main unit, removable water tank, power adapter, and detailed user manual. Simple plug-and-play setup – no plumbing required!

    Technical Specifications

    • Filtration Stages: PP Cotton → CTO→ RO PCF → MIN → UV Chamber
    • Cold Water Output: 10°C
    • Flow Rate: 0.26L/min
    • Dimensions: 12.4" x 11" x 15"
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