Premium Grade HTH Spa Non Chlorine Shock powder 1.2 KG
£27.00
Premium Grade HTH Spa Non Chlorine Shock powder 1.2 KG
Premium Grade HTH SPA Non-Chlorine Shock is a fast-acting oxidising treatment designed to keep hot tub and spa water clean, clear, and fresh. Compatible with both chlorine and bromine systems, Premium Grade HTH SPA Non-Chlorine Shock quickly eliminates organic contaminants, controls cloudy water and odours, and supports effective sanitiser performance without significantly raising chlorine levels. Ideal for weekly spa maintenance or rapid water recovery.
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Suitable for chlorine and bromine spas
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Fast-acting non-chlorine shock treatment
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Eliminates organic waste and pollutants
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Clears cloudy water and removes odours
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Ideal for weekly maintenance or bromine activation
If you have any questions, please call our shop on 01268 776690 — we’re always happy to help. Thank you for choosing CrystalClear Leisure.
Premium Grade HTH Spa Non Chlorine Shock powder 1.2 KG
Premium Grade HTH SPA Non-Chlorine Shock is a high-performance, fast-acting oxidising treatment designed to maintain exceptional water quality in hot tubs and spas. Specially formulated for use with both chlorine and bromine sanitising systems, Premium Grade HTH SPA Non-Chlorine Shock helps keep spa water clean, clear, fresh, and safe for regular use.
Unlike traditional chlorine shock treatments, Premium Grade HTH SPA Non-Chlorine Shock works without increasing chlorine levels, making it ideal for routine spa maintenance and rapid water recovery when clarity or odour issues arise.
Key Features of Premium Grade HTH SPA Non-Chlorine Shock
Dual Compatibility with Chlorine & Bromine
Premium Grade HTH SPA Non-Chlorine Shock is fully compatible with both bromine and chlorine sanitisers, giving spa owners complete flexibility regardless of their preferred sanitising system.
Rapid Oxidising Shock Treatment
Premium Grade HTH SPA Non-Chlorine Shock quickly eliminates organic contaminants such as body oils, cosmetics, perspiration residues, and other waste that can reduce sanitiser efficiency. This helps maintain effective disinfection and sparkling clear water.
Ideal for Weekly Maintenance
Incorporating Premium Grade HTH SPA Non-Chlorine Shock into your weekly spa care routine helps sustain proper sanitiser levels, supporting ongoing water clarity and hygiene.
Instant Cloudy Water & Odour Control
If your spa water becomes cloudy or develops an unpleasant smell, Premium Grade HTH SPA Non-Chlorine Shock can be applied immediately to restore clarity and freshness.
Non-Chlorine Formula
Premium Grade HTH SPA Non-Chlorine Shock will not significantly raise free chlorine levels, allowing for quicker return-to-bathe times when used correctly.
How to Use Premium Grade HTH SPA Non-Chlorine Shock
Step 1 – Preparation
Ensure no bathers are in the spa. Turn on the circulation pumps to allow proper distribution of Premium Grade HTH SPA Non-Chlorine Shock.
Step 2 – Calculate Dosage
For standard shock treatment:
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Use 20g of Premium Grade HTH SPA Non-Chlorine Shock per 1,000 litres (220 UK gallons) of spa water.
For weekly bromine activation:
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Use 15g of Premium Grade HTH SPA Non-Chlorine Shock per 1,000 litres.
Accurate measurement is essential to maintain balanced water chemistry.
Step 3 – Add the Product
With pumps running, evenly sprinkle the measured amount of Premium Grade HTH SPA Non-Chlorine Shock across the surface of the water to ensure even distribution.
Step 4 – Circulation & Waiting Period
Allow Premium Grade HTH SPA Non-Chlorine Shock to circulate for at least 15 minutes. This enables the product to oxidise contaminants and restore water clarity.
Step 5 – Test Before Bathing
Before re-entering the spa, test Free Chlorine or Free Bromine levels to ensure they are within safe bathing ranges.
Why Use Premium Grade HTH SPA Non-Chlorine Shock?
Regular use of Premium Grade HTH SPA Non-Chlorine Shock helps to:
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Remove organic waste and pollutants
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Improve sanitiser efficiency
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Maintain crystal-clear spa water
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Reduce unpleasant odours
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Support safe and hygienic bathing conditions
By oxidising contaminants rather than simply masking them, Premium Grade HTH SPA Non-Chlorine Shock keeps your spa water balanced and inviting all year round.
Important Safety Information
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Always follow recommended dosages when using Premium Grade HTH SPA Non-Chlorine Shock.
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Ensure sanitiser levels are within safe limits before allowing bathers to enter.
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Store Premium Grade HTH SPA Non-Chlorine Shock in a cool, dry place away from moisture.
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Keep out of reach of children.
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Always read the label and product information before use.
Why Choose CrystalClear Leisure?
We supply only premium-quality pool and spa chemicals from trusted manufacturers. The majority of our products are in stock and ready for fast dispatch. As a family-run business with over 75 years of combined industry experience, we specialise in pumps, filters, heaters, maintenance equipment, spares, and professional-grade water treatment products.
We are always happy to provide expert advice to help you maintain perfectly balanced spa water.
If you have any questions, please call our shop on 01268 776690 — we’re always happy to help. Thank you for choosing CrystalClear Leisure.


















