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HDPE POND LINER (10 FT x 10 FT, 20 MIL) — The $30 sheet that turns a backyard trench into a sub-ambient water reservoir. The only waterproof layer a passive cooling pit needs.
HDPE POND LINER (10 FT x 10 FT, 20 MIL) — The $30 sheet that turns a backyard trench into a sub-ambient water reservoir. The only waterproof layer a passive cooling pit needs.
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