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He gives this one two thumbs up!
1" TABLETS COMPARE TO BIOGUARD®, SUN®, GUARDEX®,AND PACE®.
Powerful 90% Available Chlorine! Features the same outstanding quality as our 3" Tablets, but is faster dissolving for more immediate results. Great for use in floaters, automatic chlorinators, and skimmer baskets.
Each tab weights 0.5 oz. 99% Trichloro-S-Triazinetrione.
Shipped in 4 X 25lb Buckets