My dpd powder looks crystalized. Bought it last year and just opened it. Is it bad?

This reagent is one of those with a shorter shelf life in the Taylor catalog. There should be an expiration date printed on the bottle. It may still be good, but proceed with care if it is over a year old. According to Taylor, with respect to the R-0870 reagent, this may help you identify if the reagent has become compromised and should be discarded: "As it degrades, the color will turn from an off-white color to gray or purplish gray and will gradually become a purplish brown color." As a general precaution, Taylor recommends replacing all reagents more than one year old.

what is the expiration date

The seller on mine was EZ Test Pool Supplies and the expiration Date is 08/22

Is there any way to know the expiration date of the current product? Some seller sent me product expired last year?

All product is 1 or 2 years for expiration. Ask the seller to send a newer one.

What is the difference between R-0870 and R-0870-l ?

R-0870 is the number of the reagent. The additional suffix such as -I or -J indicates the size. R-0870-I is 10 grams. R-0870-J is the same reagent in 0.25 lb size.

Taylor R0870 I Reagent Dpd Power R0870i

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Description

💧 Stay ahead of the splash with precision you can trust!

SEAMLESS INTEGRATION - Designed as a direct replacement reagent for Taylor testers—no guesswork, just plug and play.
TRUSTED BY THOUSANDS - Backed by a 4.7-star rating from over 1,100 pool pros and enthusiasts who demand accuracy.
PRECISION PACKED POWER - 10 grams of ultra-pure DPD powder for consistent, reliable testing every time.
EFFORTLESS WATER CHEMISTRY CONTROL - Dissolves quickly to deliver accurate chlorine and bromine readings, keeping your pool perfectly balanced.
ANNUAL REFRESH FOR PEAK PERFORMANCE - Replace yearly to maintain top-tier testing precision and ensure your pool stays crystal clear.

Taylor R0870-I Reagent DPD Power is a 10-gram container of high-purity DPD powder designed for accurate chlorine and bromine testing in pools and spas. It dissolves easily in water and is a direct replacement reagent for Taylor testers, ensuring reliable water chemistry management. Trusted by thousands with a 4.7-star rating, it’s recommended for annual replacement to maintain optimal testing performance.

Specifications

ASIN	B0002IXJ1M
Benefits	Assists in maintaining balanced water chemistry and accurate testing for pool and spa water treatment
Best Sellers Rank	430,130 in Garden ( See Top 100 in Garden ) 1,034 in Pool & Hot Tub Testers
Brand Name	Taylor
Customer Reviews	4.7 4.7 out of 5 stars (1,183)
Item Form	Powder
Item Highlight	Dropper Refill Tests Bromine and Chlorine in Pools & Spas, Replace Annually
Item Weight	0.01 Ounces
Manufacturer	Taylor
Manufacturer Part Number	R-0870-I
Model Number	R-0870-I
Number of Items	1
Package Size Name	10 grams
UPC	840036002049

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Taylor R0870-I Reagent DPD Power R0870I

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Description

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