United Chemical Pool Stain Treat and Remover | 2 lbs | PST-C12 Pentair 77707-0118 this filter element features 1

this filter element features 1 1/2" openings on both the top and bottom

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Ideal for All Pool Types: This water balancer is safe for use in all pool types

Easy to Install: The kit is simple to install

United Chemical Pool Stain Treat and Remover | 2 lbs | PST-C12 Pentair 77707-0118 this filter element features 1United Chemical Pool Stain Treat PST C12 is a highly effective stain remover and prevention product, designed to tackle difficult mineral stains in swimming pools. This versatile product works on all pool surfaces and is especially powerful when used for start up stain prevention. It requires a dosage of 2 lbs per 20,000 gallons of water and remains effective for 40 60 days, making it both long lasting and easy to use. To ensure the best results,