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Pro Products 2009 Hardness #3 Refill Solution (16 oz). The 2009 Pro-Products #3 hardness refill solution assists you to determine hardness levels in your water. High levels of hardness can leave white residue on sinks and faucets as well as decreasing the life of appliances. The 2009 #3 hardness refill works with Spectrum's Demonstration and Field Analysis test kits by Pro Products to bring you easy, convenient results, order today!
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🇺🇸 Ship from USA · On Agora since 2025
$45.00