GLB Supersonic 73% Cal-Hypo shock granules in 1 lb package for fast pool sanitizing

GLB

GLB Supersonic 73% Cal-Hypo Shock | 1 lb, Case of 24

High-performance patio lawn and garden made for confident daily results

$193.41

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Why customers choose PatioZora Garden

Overview

GLB SuperSonic is a versatile pool treatment engineered to sanitize, clarify, and shock-treat water. This fast-acting formula helps curb algae and maintain bright, inviting water without over-stabilizing your chemistry. It works with both chlorine and saltwater systems and is suitable for all pool surfaces.

Key benefits

  • Fast-dissolving granular formula that begins working quickly
  • Minimum available chlorine: 70% for effective sanitation
  • Compatible with chlorine and saltwater sanitizing systems
  • No cyanuric acid and leaves no residue
  • 24-pack providing ongoing supply for regular maintenance

Why it matters for your pool

Used as part of a weekly routine, GLB Supersonic supports balanced water chemistry without over-stabilizing, helping water look clearer and feel crisper. Its robust shock action may help deter cloudy water and algae growth, while staying easy to incorporate into your regular pool care.

What to expect

  • Clearer water with improved visibility across the pool
  • Algae control through a strong shock treatment
  • Effective on vinyl, plaster, and fiberglass surfaces
  • Weekly dosing of 9–18 oz per 10,000 gallons

Usage at a glance

To use, add 9–18 oz per 10,000 gallons of water each week, ensuring the water is circulating for even distribution. The product is designed to work with both chlorine and saltwater systems and does not introduce cyanuric acid into your water.

FAQ

Q: What is GLB Supersonic 73% Cal-Hypo Shock used for?

A: A fast-acting pool shock that sanitizes, clarifies, and helps prevent algae; recommended weekly dosage of 9-18 oz per 10,000 gallons; compatible with chlorine and saltwater systems.

Q: How do I use GLB Supersonic 73% Cal-Hypo Shock?

A: Add 9-18 oz per 10,000 gallons weekly; ensure proper circulation; suitable for all pool surfaces; leaves no residue when used as directed.

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