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Ultra Shock (900g) - Step 2 Sanitizer System

Item: 70202

In Stock.

Ships from our Vancouver, Toronto or Montreal locations

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ULTRA SHOCK™ is an effective quick dissolving non-chlorine oxidizer that is optimal when utilized with BROMO DISCS™ or BROMO BLAST™ to restore water clarity, and control bacteria and algae in hot tub waters by renewing available sanitizer.

Available size : 900 g

pH : 2.5

Beachcomber UltraShock (formerly called Bromate) is a highly soluble, granular, finely ground, 100% chlorine-free oxidizing product that contains Potassium Monopersulfate. This oxidizer works alone or in conjunction with other product o create active bromine sanitizer. For activating Ultrashock, you must add to your hot tub water with our liquid Bromide; it creates a ‘bank’ that activates UltraShock, creating hypobromous acid. This reaction releases a powerful bromine sanitizer that kills bacteria, viruses and pathogens in the hot tub water. It also prevents the growth of these harmful organisms. UltraShock can also be used with our Bromo Disc which together creates bromine sanitizer. 


  • Add Ultra Start as directed
  • Add 125 g of UltraShock per 1000L of hot tub water to release bromine sanitizer
  • Maintain water circulation at least 30 minutes before using
  • Test your water and maintain the proper Bromine level by adding 30 g of Ultra Shock per 1000L of hot tub water, daily or as needed. Beachcomber 6 Ways Water Test Strips

Water Balance Parameters
Government approved recommended ranges for keeping hot tub clean and balanced

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