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Durable formula
UV rays and salt
/40 strokes
For exterior use on pressure treated lumber
Boxed loose
Black Swan's Power Crystals 16 oz. (16 oz.) Conduit and Fittings Durable formulaBlack Swan's Power Crystals are a powdered blend of sodium hydroxide, sodium nitrate and an aluminum alloy designed for cleaning clogged drain pipes due to grease, hair, lint, paper, food scraps, and all organic material. Will not harm plumbing fixtures, porcelain or septic systems. Black Swan's Power Crystals are extremely fast acting. THE PROBLEM Drain lines over time accumulate matter on the sides of the piping system. This matter could be grease,
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