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.

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R-0870-I

Product ID: 6511935

Details

Brand
Taylor
Item Form
Powder
Item Weight
0.01 Ounces
UPC
840036002049

💧accurate water chemistry

⚖️10g precise dosing

🏊‍♂️trusted pool care reagent

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Description

💧 Keep your pool pristine with precision-powered testing!

TOP RANKED LOVED - Rated 4.8 stars by over 1,190 pool pros and enthusiasts
COMPACT CONVENIENT - Small container, big impact on your pool’s health
TRUSTED TAYLOR QUALITY - Industry-leading reagent for reliable results
OPTIMIZED FOR POOL SPA - Specifically formulated to maintain balanced water chemistry
PRECISION PACKED 10 G POWDER - Exact dosing for flawless pool testing

Taylor Technologies R-0870-I is a 10-gram DPD powder reagent designed for precise and reliable pool and spa water testing. Highly rated and trusted by thousands, it ensures balanced water chemistry for a safe, sparkling swim every time.

Specifications

ASIN	B0002IXJ1M
Best Sellers Rank	#2,839 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #118 in Pool Chemicals & Water Testing Products
Brand Name	Taylor
Customer Reviews	4.8 4.8 out of 5 stars (1,191)
Item Form	Powder
Item Type Name	Taylor Technologies R-0870-I DPD Powder for Swimming Pool, 10gm
Item Weight	0.01 Ounces
Manufacturer	Taylor Technologies, Inc
Manufacturer Part Number	R-0870-I
Model Number	R-0870-I
Number of Items	1
Product Benefits	Assists in maintaining balanced water chemistry and accurate testing for pool and spa water treatment
UPC	840036002049

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