Replacement Reagents, Tablets & Supplies- LaMotte ColorQ 2x PRO 7 Kits
Product Categories
« Back to Store
Chemicals
Testing Supplies
Chemical Controllers & Automation
Chemical Feeders
Pumps, Stainers, Motors & Parts
Spa Air Blowers
Filtration
Pool & Spa Heaters
Mechanical & Plumbing
Swimsuit Dryers
Spa & Sauna Accessories
Automatic Pool Vacuums
Maintenance Supplies
Safety Equipment & Supplies
Ladders, Handrails, Steps & Accessories
Pool & Spa Lighting
Pool & Spa Covers
Pool Winterizing
Aquatic Exercise Equipment
ADA Pool Lifts, Pool Access & Training
Lifeguard Chairs
Diving Stands & Boards
Starting Blocks & Platforms
Competitive Racing Lanes & Pace Clocks
Basketball & Volleyball
Safety Padding & Play Features
Ultraviolet (UV) Light Systems
Pool Fencing
LaMotte 6903A-J DPD 1 Tablets – Free Chlorine Test Tablets (Box of 100)

LaMotte 6903A-J DPD 1 Tablets are used for precise free chlorine testing in pool and spa water. These rapid-dissolving tablets react with chlorine in the sample water to create a distinct pink color when free chlorine is present. The intensity of the color corresponds to the concentration and can be read using visual comparators or digital photometers, including LaMotte’s colorimeters.
Each tablet is individually foil-wrapped to ensure long shelf life, resistance to moisture, and consistent performance. Ideal for pool service professionals, facility operators, and residential users who prefer tablet-based testing over liquid reagents.