QSIM/QSIMX External Fridge filter is available at the following stores:
Click to buy online or in store at:
Also available in store at the following retailers:

Not all models are available at all locations/retailers. If you questions regarding availability of a particular model, please call your local store or Rainfresh support.
PERFORMANCE
Reduces
- lead
- Volatile Organic Compounds (VOC) – over 50 chemicals including pesticides, herbicides, insecticides, benzene, Trihalomethanes, chloroform etc
- parasitic cysts (Cryptosporidium & Giardia)
- chlorine, taste and odour
- sediment
BENEFITS
- Can be used on any water or ice dispensing fridge with 1/4″ water supply
- Exceptional performance gives you the confidence that you are getting clean, safe, pure drinking water
- Does not remove healthful minerals
- Extremely easy filter cartridge changes to maintain the quality of your water – just hold, twist and remove – no need to turn water off – NO SPILL, NO MESS
FEATURES
- Compact design that installs easily
- Lead and BPA-free materials
- Easy cartridge change design – hold, twist and remove – no need to turn water off – NO SPILL, NO MESS
- Cartridge replacement monitor (model QSIM only) – lights up when the life of the filter cartridge is over
INSTALLATION
- Easily installs on a wall near or at the back of the fridge.
- Can also be installed in the basement on the 1/4″ water pipe supplying water to the fridge. Unit must not be more than 15 feet away from the fridge
REPLACEMENT CARTRIDGE
- Replacement cartridge model QLV
-
- Cartridge life = 250 US gal/946 L or 4 months for model QSIMX
- Cartridge life = 350 US gal/1,324L or 6 months for models QSIM
- Available at most retail stores. Click on the “where to buy” tab for a list of retailers
TESTING & CERTIFICATION
- Tested and certified by CSA International to CSA B483.1, NSF/ANSI Standard 53 for reduction of VOC, lead and cyst, to Standard 42 for reduction of chlorine, taste and odour, and to NSF/ANSI 372 for low lead requirements
WARRANTY
WHAT’S INCLUDED
Includes TWIST fridge with filter cartridge, easy-to-follow instructions for do-it-yourself installation.
Download brochure (PDF):
Download Performance Data Sheet (PDF):
Download Instructions (PDF):
What does “External” Fridge Filter mean?
Fridge filters that are installed on the 1/4″ water pipe that supplies water to the fridge are called “external” fridge filters. They do not install inside the fridge in place of the original fridge filter, but are installed on the outside.
What is the advantage to this filter over my OEM fridge filter?
The TWIST external fridge filter has the following advantages:
- It has superior contaminant reduction performance compared to most OEM fridge filters
- It is substantially economical compared to OEM fridge filters
- It can be used on any fridge make or model, so you don’t have to worry about trying to find the exact model for your fridge.
- Replacement filter cartridges are easily and readily available at most retail stores (see “where to buy” tab)
- Model QSIM has a real time and usage monitor that lights up to let you know that the cartridge life has ended. This ensures that your family always gets safe, clean drinking water and ice cubes from the fridge.
Where should I install in on the water pipe?
The external fridge filter can be installed anywhere on the 1/4″ water pipe that supplies water to the fridge. It can be in the basement, on the side or even behind the fridge if it is easily accesible.
Is this filter as good as my original fridge filter?
The performance of this filter exceeds most fridge filters. This high performance filter reduces over 50 different types of chemicals including industrial pollutants, pesticides, herbicides, insecticides, volatile organic compounds, lead, parasitic cysts, chlorine, taste and odour.
Is it easy to replace the filter?
It is extremely easy to replace the filter. Simply grab the filter and twist it to remove. The filter has a built-in automatic shut-off valve that turns the water off as soon as you remove the cartridge. To install a new cartridge, simply hold in position and twist into place. This can be done in seconds by hand.
Have more questions? Enter you own question below and our customer service will get back to you within 24 hours.
To order parts, please visit Rainfresh online store at : www.rainfreshstore.ca
Premium External Fridge Filter
Rainfresh external fridge filter is an excellent choice for clean, healthy, great tasting drinking water and ice cubes from your fridge at less than half the price of expensive, hard to find internal fridge filters. Rainfresh TWIST Fridge Filter offers an excellent and economical solution. Installed outside the fridge on the 1/4″ water pipe that supplies water to the fridge, TWIST Fridge Filter exceeds the performance of most fridge filters. The added advantage is that it can be installed on any water or ice dispensing fridge regardless of make and model taking the worry out of finding exact model numbers.
It also features a built-in filter cartridge replacement monitor that counts time and water used and lights up when the filter needs to be replaced (Model QSIM).
Also available TWIST drinking water system (includes faucet)
PERFORMANCE
Reduces
- lead
- Volatile Organic Compounds (VOC) – over 50 chemicals including pesticides, herbicides, insecticides, benzene, Trihalomethanes, chloroform etc
- parasitic cysts (Cryptosporidium & Giardia)
- chlorine, taste and odour
- sediment
BENEFITS
- All you need for drinking water needs of your urban home right from your fridge
- Exceptional performance gives you the confidence that you are getting clean, safe, pure drinking water
- Does not remove healthful minerals
- Extremely easy filter cartridge changes to maintain the quality of your water – just hold, twist and remove – no need to turn water off – NO SPILL, NO MESS
FEATURES
- Compact design that easily installs on water line to fridge
- lead and BPA-free materials
- Easy cartridge change design – hold, twist and remove – no need to turn water off – NO SPILL, NO MESS
- Cartridge replacement monitor (model QSIM only) – lights up when the life of the filter cartridge is over
INSTALLATION
- Installs easily on water supply line to fridge.
- Can be installed in the basement with tube running to fridge. Unit must not be more than 10 feet away
REPLACEMENT CARTRIDGE
- Replacement cartridge model QLV
- Cartridge life = 250 US gal/946 L or 4 months for model QSIMX
- Cartridge life = 350 US gal/1324L or 6 months for models QSIM
- Available at most retail stores. Click on the “where to buy” tab for a list of retailers
TESTING & CERTIFICATION
- QS1 Home Water Filter System Canada is tested and certified by CSA International to CSA B483.1; to NSF/ANSI Standard 53 for reduction of VOC, lead and cyst; to Standard 42 for reduction of chlorine, taste and odour; and to NSF/ANSI 372 for low lead requirements
WARRANTY
Excellent filter, very easy to change, love that you don’t have to shut off the water to replace filter. Water tastes great and no clorine smell or taste.