The Kros Urinal from Kros International USA has a 100-gallon tank and a small footprint at 36.6 square inches. It has a draining connection under the unit to connect it with other urinals and allow it to drain through 1.5-inch pipes to a holding tank outside of the event. Four men can use it simultaneously, resulting in shorter waiting lines and cleaner portable restrooms. 855/576-7872;

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