Pay in 4 interest-free payments of $5.49 Learn more
Ships within 48 hours · Estimated delivery Jul 28 - Aug 2
Best results are obtained when surface and air temperatures are above 60°F and below 100°F
Will not affect pools pH levels
• Covers approximately 300 sq ft/gallon
Time Savings w/ No Mess
CAL BLOCK Size:8 Ounce Finger Spray Best results are obtained whenIs a safe, non toxic, invisible, multi surface protectant that is specifically formulated to "Block" calcium and hard scale from building up and damaging your pool tiles and water features, allowing future calcium to be easily removed off any treated surface. Easily applied to glass, porcelain and ceramic pool tile, concrete, rock features, travertine and concrete pavers, metal and more. Apply every 3 6 months to greatly reduce calcium, scale,
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