Insta-Test Free & Total Chlorine & Chloramine Strips (Fresh Water) - LaMotte

Insta-Test Free & Total Chlorine & Chloramine Strips (Fresh Water) - LaMotte
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Insta-Test Free & Total Chlorine & Chloramine Strips (Fresh Water) - LaMotte

65% Recommend this to a friend (11 of 17)

SKU: 208458
In Stock: 739
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Quick Overview

Why does BRS recommend this?

The easiest way to know if your city uses chlorine or chloramines is by using the LaMotte Test Strips for Free and Total Chlorine.  Water Treatment facilities can change their treatment process without notice and usually change the amounts of disinfectants used depending on the season.  With simple low cost, quick, and easy to use test strips that give reliable readings, every RODI system that filters city water should not be without them.

Free and Total Chlorine with test strips from LaMotte.  These test strips are used to identify if you your city uses chloramines or chlorine as the main disinfectant. Test strips are also used to determine when it is time to change your carbon blocks.

By having the ability to test for free and total chlorine will allow you to take a quick reading from your tap water.  If the Free Chlorine reading matches the Total Chlorine reading then no chloramines will be present.  However if the Total Chlorine is greater than the Free Chlorine reading your city is using chloramines.

•Range and sensitivity is 0, 0.5, 1, 3, 5, 10 ppm

•25 Test Strips


Full Details

Testing procedure for identifying the disinfectant your city uses. 

1)  Run your tap water for two minutes and collect a water sample.

2)  Dip the test strip as directed on packaging and read results. 


  • Up to 5ppm total chlorine & same free chlorine = Chlorine* 
  • Up to 5ppm total chlorine & zero free chlorine = Chloramines*
  • Zero free and total chlorine = Well water*

*This is the most common interpretation of results. If you have trouble reading or determining results we suggest calling your city hall or water treatment facility to make a final determination.  


Testing procedure for identifying when your carbon blocks need to be replaced. 

1)  Run your RO/DI system for 30 minutes and collect a sample. Sample needs to be water which has passed through the carbon blocks but not the membrane. You can remove the tube coming from the last carbon block to collect the sample or collect a sample from your waste water tube, whichever is easier.

2)  Drip the test strip as directed on the packaging and read results. 


We suggest replacing the carbon blocks if you get any reading above zero. Readings over zero are an indication that the carbon blocks ability to treat for all types of contaminants has been depleted. Absolutely replace carbon blocks once the reading surpasses 0.5ppm


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  • ran the test according to directions By pet22 on 11/20/2016

    I'm not sure whats going on here, the date for the test strips are 3/17. After testing my tap water, the results show nothing 0, which i wouldn't think is possible.
  • Seems to work By Lisa on 9/23/2016

    I tested the first one with tap water, and the amount of chlorine the strip indicated is within range the city reports the city water as having, so they seem accurate enough.
  • Works for me. By Rmac on 6/29/2016

    I use them to test the effectiveness of the Carbon filters.
  • Dangerous. DO NOT TRUST RESULTS By Michael on 3/5/2016

    I recently bought some chlorine test strips. I wished to verify my tap water contains chlorine and not chloramine which the pet stores always insist. What I found, besides the fact I was right, is the product is very dangerous. I am told that chlorine as low as 0.25 ppm could still kill everything in your tank. At normal 75 F water temperatures these strips state there is no chlorine when in fact there is 0.40 ppm. Almost twice the lethal amount. I have determined through experimentation the problem seems to be 2 fold. The strips only seem to react at temperatures so low they would probably kill most tropical fish. They also only report about half of what is present. I feel that it is necessary to put out this information immediately in case anyone was using aeration or activated carbon for dechlorination of aquarium water and uses this product to test the water for safety.
    Chlorine Test Strips
    Insta-Test ANALYTIC Free & Total Chlorine
    Code 3027-G
    Lot number? 5335 Expiration 11/17
    Just got these in the mail today.
    Test Conducted at Sat Mar 5 9:10 PM

    Sample 1
    ~75 F Tap Water
    Chlorine smell and taste is evident.
    Hanna Chlorine Checker reads 0.41 ppm
    Test Strips Result 0 ppm for both Free and Total Chlorine.

    Sample 2
    ~50 F Tap Water
    Chlorine smell and taste is evident.
    Hanna Chlorine Checker reads 0.80 ppm
    Test Strips Result .5 ppm for both Free and Total Chlorine.

    Sample 3
    ~110 F Tap Water
    Chlorine smell and taste is evident.
    Hanna Chlorine Checker not conducted
    Test Strips Result 0 ppm for both Free and Total Chlorine.
  • Waste of $$ By MO on 11/4/2015

    I used a test strip on a recent R/O batch and was happy to find no chlorine or chloramine. I then went to test my tap water and also found no chlorine or chloramine. Test fail!
  • No help By Joseph on 11/3/2015

    Test strips indicate 0 total and 0 free chlorine which is weird were on city water
  • Effective By Dave D on 10/16/2015

    The results were easy to read and agreed with my local water company.
  • Fast and easy By kiel on 9/1/2015

    Great cost effective way to cheaply test your carbon block.
  • Did not tell me much. By fishman on 8/30/2015

    Bought this to find out if there were and Chloramines in my RODI water. According to the test there where none, but it also read that their was no Chlorine in my tap water. Which I thought was strange.
  • Does What It Suppose To By Matt on 4/10/2015

    Good method to check if chloramines are in your source water. A little difficult to to read, if color blind like me, but works as expected.
  • Get something else By Jeremy on 4/9/2015

    I bought these strips to test my water for chloramines, to determine when to change my filters. Unfortunately, they don't seem to detect much. They don't detect any free or bound chlorine, either in my tap water or filtered water. Perhaps I just got a bad batch, if others' experiences are different, but what I have is not useful to me.
  • Works well By Tex on 2/25/2015

    Product is relatively cheap and works well!


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