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The 20” drain box is the best solution for any situation, small or large. They are used in homes, golf courses, and many, many more sites. Everything you need is included, and with three different setups, your needs will most definitely be met. The 20” drainage boxes are offered with three different configurations – 6-hole, 7-hole, and 8-hole. All three 20” drainage boxes accept 4” seals. The 6-hole box and 7-hole boxes also have the option of using 6” pipe. The seals automatically included with the 20” drainage boxes accept 2”, 3”, 4”, and 4” corrugated pipes.
Optional accessories (sold separately):