Blue Horizons Granular Shock Chlorine 5kg (Use Test All Water SHGRAN5OL as alternative)
This product is the same as Test All Water own brand shock treatment.
Blue Horizons Granular Shock Chlorine is a fast-dissolving, high-strength chlorine treatment designed to quickly raise chlorine levels and eliminate harmful bacteria, algae and other contaminants in swimming pools and spas. This powerful shock treatment is ideal for regular maintenance or when dealing with water quality issues such as cloudy water and/or unpleasant odours.
With its stabilised chlorine formula, Blue Horizons Granular Shock provides long-lasting disinfection, helping to keep water crystal clear and safe for swimmers and spa users. The shock is easy to apply and it dissolves rapidly without leaving residue, ensuring an effective and efficient sanitisation process.
This shock is suitable for both residential and commercial pools and can be added to water through the skimmer.
Size:5kg
Sku:SHGRAN05BH
Frequently Asked Questions
Clear answers to help you choose the right water testing solution with confidence
Which brands of water testing kits do you supply?
Do you provide kits for both home and professional use?
Yes — whether you’re a pool or spa owner, aquarium keeper, utility company, or a university laboratory, we have the right solution for your needs.
Can I arrange servicing or calibration for my photometer?
Absolutely. We also provide servicing and calibration to keep your photometers accurate and reliable.
How quickly do you dispatch orders?
Orders placed before 2:30 pm (Monday–Friday) are dispatched the same day. We also ship on Saturdays for your convenience.
Which couriers do you use for delivery?
We deliver through UPS, DPD, and Royal Mail. You can also choose to upgrade to next-day delivery at checkout.
What is your return policy?
We accept returns within 14 days of delivery provided the items are unused, in their original packaging, and in resalable condition. Please contact our team before returning any items.
Can I place bulk or business orders?
Yes, we welcome bulk, trade, and institutional orders. For tailored pricing or large quantities, please get in touch with us directly.
How can I get help if I’m unsure which kit to buy?
You can call us at 📞 +44 (0)115888 2726 and our team will guide you in choosing the most suitable kit for your needs.