Blue Devil B7510 No.1 OTO Chlorine Level Indicator for Pool

Love this big bottle of Blue Devil chlorine tester! It is so much cheaper than buying it in that tiny winey little bottle that I have to keep on purchasing!I use it to test the chlorine levels in my pool as well as my hot tub. It saves me time and money which is what I always look for! The only issue I had in the beginning was trying to find a dropper but my husband gave me an empty bottle of his nasal spray and it works like a charm!

This product is very good and accurate too! The price point is awesome and I can and will recommend this bulk product purchase. Dispensing from this larger jug to a smaller test dispenser is a bit tricky but solved with a spice meat injector!! "Now Good To Go!!"R/ KMW

Greatproduct and fast shipping thanks again

Seems to work just like the little bottles of R-0600 I used to use, but reads slightly lower....easy adjustment. Might be a while before I break even on cost, but I know I will and I don't have to worry about ordering any more for probably 5 years!

Great product, and great value.

Received early well satisfied

Will save tons of money with this size!

Good