Canadian Spa Company “Spa Shock” – 800g 

"Shocks" water to refresh chlorine levels and reactivate it by dissolving unfilterable wastes. Reduces odours and restores a natural sparkle to your hot tub water.

TIP: Use after heavy usage or contamination to restore clean, fresh water.

 Spa Shock - Toxicology Report

For chemical help, please refer to our spa chemical guides:

Spa Chemical Guide   Chemical Common Questions