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1" MERV 13 Furnace & AC Air Filter by Filters Fast® - 6-Pack
BioStrike CFF Ceiling Fan Air FilterThese Free Chlorine Test Strips 486637 are used in the Sensafe Exact Micro 7 Photometer and in other water testing micro meters.
Spa and Swimming pool owners should test for free chlorine in pool water regularly to ensure their free chlorine level is in the proper range of 1.0 - 3.0 ppm. When the free chlorine or residual chlorine in pool water exceeds this amount, it can irritate the eyes, nose and skin. If the free chlorine is too low, it may result in the growth of algae and bacteria, which can make your water unsafe and cloudy.
Sensafe Exact Micro 7 Free Chlorine Testing Strips:
- Contains 100 Free Chlorine Pool Test Strips
- Detection Range: 0.03-6.5 ppm
- Chemistry: DPD (DPD-1)
A full refill kit for the Exact Micro 7 meter would include these eXact Strip Micro test strips (each sold separately):
- pH Test Strips 486639
- Copper Test Strips 486632
- Calcium Test Strips 486629
- Total Alkalinity Test Strips 486641
- Free Chlorine Test Strips 486637 (DPD-1)
- Total Chlorine Test Strips 486670 (DPD-4*)
*The DPD-3 Total Chlorine strips that came with the eXact Micro kit require the use of a DPD-1 strip to test for free chlorine, whereas the DPD-4 strips do not.
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