New! DPD TesTabs®

All New Packaging
for Easier Use!

The DPD tablet is the most widely used test for determining Free and Combined Chlorine in pool water. Establishing a Free Chlorine residual is the most important step toward protection of bather health.

A DPD #1 Rapid tablet will quickly reveal the precise level of Free Chlorine. (Note: Levels in excess of 10 ppm may bleach out any DPD test method.)

The DPD #3 Rapid tablet measures the level of Combined Chlorine. Combined Chlorine is a sanitizer that has reacted with impurities within the water and is, therefore, less capable of disinfecting pool water. It can cause eye irritation and a strong chlorine odor. To test for Combined Chlorine, simply add a DPD #3 Rapid tablet to the Free Chlorine water sample. A measurable increase in sample color indicates undesirable Combined Chlorine, which should be treated with a chlorine or oxygen-based shock treatment.

New! TesTabs® Reagents

Now in an easy Push-Through Package - Call for pricing on bulk quantities of tablets (50M+). Now in an easy push-through package.

Quantity/Order Code

Tablet

50

100

1000

Chlorine DPD #1 RAPID

Chlorine DPD #3 RAPID