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Ships within 48 hours · Estimated delivery Sep 7 - Sep 12
💧 Single-Use Convenience
5" GAC Filter
Where the ELF-5M Fits
the resin is exhausted and it's time to swap cartridges—waiting too long means you're no longer getting the purity you're paying for
Media is replenished as it depletes over time
Sensafe (481108) Total Hardness; 30 Test Strips Sensafe (480022) Its Free Chlorine High Range Kit; 50 Bottle 💧 Single-Use ConvenienceSensafe 481108 Total Hardness Test Strips Quick read water hardness testing for residential, educational, and pool applications 30 Test Strips 30 Second Results 0 1000 ppm Range No Equipment Required The Sensafe 481108 Total Hardness Test Strips measure calcium and magnesium content in water from 0 to 1000 ppm with a simple one dip procedure. Ideal for testing drinking water, pool and spa water, or teaching chemistry principles without expensive lab
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