HTH Extra Super Shock is fast acting and powerful HTH Extra Super Shock contains 75 available chlorine, making it 15 stronger than regular HTH Shock Its fast dissolving, extra fine formula is made with a patented process that makes it perfect for weekly shock treatments and killing algae. No need for messy liquid chlorine for sanitizing your pool, HTH EXTRA is easier to store and use. 1 pouch is approximately equivalent to 10 liters of liquid chlorine
order now at Canada Pool Warehouse!
https://canadapoolwarehouse.com/product/hth-extra-super-chlorine-shock-454-g/
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