XtraBlue 3-Inch Long Lasting Chlorinating Tablets, 5-Pound Chlorine

I like that each comes wrapped separately. None broken in pieces. Total of 10 came in the 5-lb size container. These seem to work the best in our round above ground pool. 1 weekly tablet for 18ft x 4ft high pool. I also add 1 arm & hammer pool ph stabilizer tablet with the chlorine tablet floaty to keep ph great.. and shock every 2 weeks.. sooooo easy! Testing is always perfect! Had my pool 16 years now.

item received damaged most of the pieces are broken and powder came out of the box and the package (toxic material came out and spread in all the my entrance need compensation as i take pictures for every thing

All the tablets were destroyed… cost a lot of money for products isn’t in good shape this isn’t nice !

Box arrived sealed. Chlorine tablets are very strong I suggest opening outside. They fit nicely in the KingSom dispenser. Designed for algae removal and maintenance. Suggest brushing walls of pool and steps to accelerate chlorinating and promote even dispensing. I can’t address chemical free aspect but even within a few hours I can see the chlorine is having a positive affect. Container does reseal but does not lock. I suggest placing in a safe place to keep away from children.

I use these in my above-ground pool and they’ve done a good job keeping the chlorine level up between treatments. Easy to use in a floater and dissolve at a steady rate. No complaints.