













Lovibond DPD 1 High Range Tablets
Lovibond DPD 1 High Range Tablets are specialised chemical reagents designed for Lovibond Photometers, and ensure the precise measurement of high concentrations of free chlorine in water.
These high-range tablets offer quick and reliable testing, ensuring you maintain optimal water quality even under rigorous conditions.
Ideal for use in:
- water treatment facilities
- industrial water systems
- emergency disinfection
- high chlorine environments
- commercial swimming pools
Different size boxes available including 100 & 250
511501BT: 250 Pack
511500BT: 100 Pack

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.