Lovibond DPD No 2 Comparator /Photometer Tablets
Lovibond DPD No.2 Comparator/Photometer Tablets are designed for measuring combined chlorine levels in water, following the initial free chlorine test with DPD No.1 tablets. These tablets are used in conjunction with DPD No.1 tablets to complete the chlorine testing process, indicating the presence of combined chlorine, which forms when free chlorine reacts with contaminants.
Ideal for use in swimming pools, spas and other water treatment systems, DPD No.2 tablets deliver clear, accurate results through colorimetric analysis when used with Lovibond comparators or photometers.
These tablets help ensure proper water disinfection by allowing users to monitor both free and combined chlorine levels.
Different size boxes available including 10, 100 & 250
511531BT: 250 pack
511530: 100 pack
511530-1BT: 10 Pack ( Tablets come in blister packs, box not included)
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.