Pre-measured for the size of your pool so every pool owner can easily close the pool with the right winter pool chemicals, at the right price.

Unlike chlorine-based winter kits that reduce the effectiveness of algaecide and other pool winterizing chemicals and can stain, bleach or damage pool surfaces, Our chemical kits won't damage your pool during winter.
No staining, no bleaching... just clean, sanitary water. Kills micro-contaminants, algae and pathogens.
Includes pool winterizing instructions.
Pool water temperature should be at 65 degrees F or below before winterizing.
Not for use in winterizing pools using a biguanide based sanitizing system.

Qualco - Pool Winterizing Kit 15,000 Gallons