One ounce water soluble blocks for easy application.

• This unique formulation is produced using a "no mess" block, which immediately begins to dissolve upon contact with water
• Reduces toxic ammonia and nitrite
• Reduces problem causing nitrate and phosphate
• Reduces murky water caused by organic wastes
• Reduces organic bottom sludge (muck)
• Reduces odors
• 1 block per thousand gallons

SBB12 - 2 ct. 1 oz. blocks, treats 12,000 gallons

SBB24 - 24 ct. 1 oz. blocks, treats 24,000 gallons

SBB80 - 5 lb. pail, 1 oz. blocks - Approx. 80 blocks

SBB160 - 10 lb. pail, 1 oz. blocks - Approx. 160 blocks