Flex-Drain curves around obstacles and holds its shape like a giant bendy straw, eliminating the need to cut pipes and insert fittings. The 12-foot product expands to 50 feet (shorter lengths are available as well) and comes in three versions: solid, perforated, and perforated with a removable polyester sock that serves as a debris filter. A length of solid or perforated Flex-Drain costs about $40.

Cleveland Tubing, 800/257-1722, flex-drain.com.

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