Water Softener Salt Crystal High Purity 99% Pure, Low Insoluble, Minimizes Tank Residue, NSF Certified, 40 lb - 4 Packs - Sodium Chloride
- Typically 99.6% pure solar salt
- Naturally produced using sun, wind, and time
- Low insoluble content reduces tank buildup
- White, opaque crystal appearance
- Solar salt is recommended for use in all water softeners
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