Frizlife RO-K3 Reverse Osmosis Water Filtration System - 100 GPD, 1:1 Pure to Drain, Small Size, Easy Install

Frizlife RO-K3 Reverse Osmosis Water Filtration System - 100 GPD, 1:1 Pure to Drain, Small Size, Easy Install


  • Apply $60 Off Coupon Code when Checkout: RO60OFF
  • Premium Filtration Performance: RO-K3 under sink RO water filter system uses advanced RO membrane with 0.0001 micron filtration precision, which effectively reduce more than 1000+ kinds of harmful contaminants (99.99%) from tap water including Lead, Chlorine, Fluoride, Heavy metals, Chloramine, VOCs, TDS, Limescale, Arsenic and Asbestos and more. Also includes a composite 2-in-1 CP filter with pre-filter function, and a post carbon filter to polishes the flavor.
  • Water Saving & Longer Filter Life: RO-K3 features with 1:1 low drain ratio @70psi. For each cup of RO water, only 1 cup of waste water will be produced (Most RO systems produce 3 cups of waste water). The 1st stage uses pleated composite filter, it has 3 times longer service life, the removing capability of which is also better than normal sediment filter, thus prolongs the lifespan of RO membrane.
  • DIY Install & Quick Change: The RO filtration system comes with everything you need for installation. Besides, the system also comes with 3/8" to 1/2" converter fittings, thus it is compatible with most standard US kitchens. Adopting twist-in design, all filter cartridges can be easily changed in a snap with the wrench provided. By setting next filter replacement date on the lid, you can always replace filters in time.
  • Fast Flow & Super Thick Housing: RO-K3 undersink RO filtration system comes with a pressure tank, the water flow can reach 0.8GPM, you can always fill up a 330ml cup of water in 7 seconds! The capacity of RO membrane is 100 gallons per day. It doubles the output of traditional RO systems! RO-K3 uses thickened filter housing, which has passed pressure resistance test, thus make sure it is sturdy enough for heavy duty and long-term usage.
  • Neat Design & Multi-Usage: RO-K3 features with compact size with neat design. It is remarkably smaller than other traditional RO systems with ordinary size, which helps to save storage space under your kitchen cabinet. By using Frizzlife IMC-1 ice maker kit, RO-K3 reverse osmosis water filter system can simultaneously serve both the kitchen sink and refrigerator / ice maker.
  • Brand: Frizzlife
  • Availability: In Stock
  • SKU: RO-K3

water filter system
5 Layers of Filter Elements
  • RO-K3 utilizes 5 layers of high grade filtration elements, thus guarantees each drop of drinking water has been filtered thoroughly and effectively.
  • The purity of RO water is equal to or even surpasses that of bottled water.
Lower Drain Ratio
  • Thanks to advanced water-saving technology, RO-K3 only generates 1 cup of waste water for each cup of RO water, which saves you at least 70% water!
  • Makes your water bill much more affordable.
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    reverse osmosis
    Compact Size & No Electricity Required
    • Adopting neat design, the size of RO-K3 water filtration is remarkably smaller. The small footprint ensures the system can perfectly suit with most kitchen under sinks and save more storage space for you.
    • It does NOT require electricity to work. Besides cutting down your electricity bills, we are also contributing to energy saving together! 
    Reinforced Construction
    • RO-K3 under counter water filtration system thickens the filter housing, thus prevent any crack or leaking issue. The reinforced construction gives you peace of mind even after long-term usage.
    • ①Sturdy Design
    • ②Thickened Housing
      reverse osmosis system
      reverse osmosis system
      Easy Installation & Quick Change
      • Following the thorough manual and online tutorial video, the filter system can be completely installed by yourself in a few minutes. No plumber required.
      • The twist-in design makes the filter replacement a breeze. Just use the wrench provided to finish the replacement work effortlessly.
      • Please press the red button on the lid to release the air pressure inside before starting to use.
      3X Filter Life & Replacement Reminder
      • Pre-filter uses pleated 2-in-1 composite filter cartridge, the service life of which is 3 times longer. It also protects RO membrane at the same time, the lifespan of RO membrane can reach 2 Years.
      • Still worry about forgetting the filter replacement? RO-K3 has a built-in cartridge replacement reminder on the top, which is a manual clock dial. Simply set the next replacement date every time after changing the filters, no more guesswork
      reverse osmosis
      reverse osmosis
      Stable Flow Rate & Dedicated Faucet
      • RO-K3 is capable of producing 100 gallons RO water per day, which is sufficiently to serve the daily water needs of family. Equipped with a pressure tank, the water flow is fast and stable. You can always get a 330ml cup of fresh RO water in 7 secs!
      Fresh Water For Multiple Use
      • The ultra pure RO water coming out from RO-K3 under sink RO system can also go to your refrigerator and ice maker! IMC-1 Ice Maker Kit can help you achieve this multi-usage installation. Enjoy instant iced water and crystal ice cubes!
      reverse osmosis
      under sink water filter water filter system reverse osmosis reverse osmosis system
      Replacement Filters/Pack
      • 1. Replace the 1st stage per 6-12 months: K3-F-800
      • 2. Replace the 2nd stage per 12-24 months: K3-G-100
      • 3. Replace the 3rd stage per 8-12 months: TD-3

      Q: Why there are many white bubbles in the water?

      A: Normally for the first time use of the RO system, the water seems to have white bubbles in it,

      which is normal and totally drinkable. It is because when the pump is pressurizing the water, it

      will pressurize the air at the same time. It will make the air molecules smaller, thus the solubility

      further increases. The air can’t be released at that time because of the pressure in the RO system.

      However, when you turn on the tap to get a cup of water, the pressure of air is released. So you

      will see a huge number of bubbles in the water. It looks cloudy and white, but they are just

      bubbles. After you put the water still for a while, all bubbles will be gone, the water is totally

      good for drinking.


      Q: Why TDS is higher at the beginning, but back to normal range after about one minute?

      A: Osmosis is a natural phenomenon happens in all RO system, no matter if you have a conventional

      RO system or tankless RO system. When the RO system starts to work, pressure from the pump

      overcomes natural osmotic pressure, forcing feed water through the RO membrane that removes

      the impurities. When the RO system stops working, the pump stops offering pressure as well. At

      that time, because of different concentrations, a small fraction of ions will enter into pure water

      and cause TDS to rise by a small amount. However, even if the TDS reading is a little high at the

      beginning, the quality water is still unbeatable by any other filtration methods including carbon,

      KDF, ceramic, UF, UV, etc.. The water is totally good to drink and you don’t have to wait for about

      1 minute to get the water, since the whole system will not release any harmful substances to the

      water. The TDS removing rate for RO-K3 is about 94-95%, if your incoming TDS is high, the outlet

      TDS will be high too.



      Q: My granite is thicker than 1.5 inch and the faucet stem is not long enough, what should I do?

      A: Please feel free to contact us at to claim for a longer thread stem.






      Model No.RO-K3Filter Cartridge InsideK3-F-800, K3-G-100, TD-3
      RO-K3 Dimensions5.2*5.2*14.9 inchesTank Dimensions11*11*14.7 inches
      TD-3 Dimensions2.1*2.1*7.9 inchesFlow Rate

      100 gallons(@60psi of

      inlet pressure ,@77ºF)

      Working PressureMin.25psi Max.85psiOperating TemperatureMin.39ºF, Max 100ºF

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