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💧 Shock your pool to perfection — crystal clear, every swim!
Drytec 1-1901-24 Calcium Hypochlorite Chlorine Shock Treatment is a premium granular pool shock designed to maintain sparkling, bacteria-free water. Each 1-pound bag treats up to 10,000 gallons, delivering 5-10 ppm of available chlorine with 68% purity. Ideal for weekly superchlorination and routine maintenance, it balances pH and alkalinity to ensure swimmer comfort and prevent algae growth. Trusted by thousands, it’s a must-have for professional-grade pool care.


| ASIN | B00BGNLUV8 |
| Best Sellers Rank | #2,630 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #46 in Swimming Pool Chlorine |
| Brand Name | DryTec |
| Customer Reviews | 4.6 4.6 out of 5 stars (6,383) |
| Item Form | Granular |
| Item Type Name | Pool Shock |
| Item Weight | 24 Pounds |
| Manufacturer | Robelle Industries |
| Manufacturer Part Number | 1-1901--24 |
| Model Number | 1-1901--24 |
| Number of Items | 24 |
| Product Benefits | Destroys Organic Contaminants,Kills Bacteria,Controls Algae |
| UPC | 034261003944 |
| Unit Count | 384.0 Ounce |
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