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[Amazon] Hofun 3-in-1 Digital TDS Water Tester - $4.49 (was $13.91)

Instructions:

  • Clip the 5% coupon
  • Use code 504APY1T at checkout

Features:

  • Tests TDS (total dissolved solids), conductivity, temperature
  • For testing drinking water, hydroponics, aquariums, well water, tap water, etc.
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Last Updated
March 26, 2024 8:30 AM