Free Chlorine Check Ultra High - bottle of 50
This simple colour test strip, from our WaterWorks™ brand, allows for quick and accurate testing of Free Chlorine in water, at an ultra high detection range (up to 750 ppm). It is a simple dip and read test strip with a precise colour chart on the back of the bottle and the results are shown within 30 to 90 seconds.
This patented, ultra high range test strip can be used to test water across industries and its unique composition means it does not bleach out, even at levels above 2000 ppm.
This test is designed to be used in the food processing field, this test can also be used in other fields across the industry where sanitation is necessary. It's also useful in checking if a DPD-based test (photometer or comparator/tablets) has bleached out and is giving you a false negative. No other reagents or accessories are needed for this test.
Detects: 0, 25, 50, 100, 200, 300, 400, 500, 750 ppm (mg/L)
Bottle of 50 tests
Sku:480024
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.