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DuraVent 4PVP-HSC PelletVent Pro Chimney Cap - 4"
That distinction matters
your sanitizer works more effectively
With 65 square feet of filtration across 234 pleats of heavy-duty polyester
and the silver ions handle most of the bacterial inhibition
Pool Marvel Water Treatment & Conditioner - 40 oz. Brand_Leisure Time Inc. DuraVent 4PVP-HSC PelletVent Pro ChimneyPool Marvel Water Treatment & Conditioner 40 oz. Overview Pool Marvel is an all natural enzyme based pool water conditioner and treatment formulation designed specifically for use in swimming pools. This product is formulated to help prevent the growth of algae and to reduce sanitizer demand by consuming visible and invisible organic matter in the pool. The unique enzymes in Pool Marvel break down oils, fats, detergents, dirt, pollen, and all other