Taylor Replacement Reagent DPD Powder, 10 Gram, R-0870-I

Taylor R-0870-I is the DPD powder reagent in a 10 gram size, supplied with a measuring scoop. It is a straight refill for Taylor swimming pool test kits.

Powder in bulk

The 10 gram bottle is the bulk form of the DPD powder rather than a strip of single use packets. With the scoop included, each test takes the same measured amount, which is what keeps results comparable week to week.

Why replace reagent

Everything in a test kit lasts except the chemistry. Reagents age, and once they do the readings drift while the kit itself looks perfectly fine. If your numbers have stopped matching a fresh test elsewhere, the reagent is usually the cause. Keep the replacement cool and out of direct sun and it will hold its accuracy longer.