A porta potty rental in Kahului comes in different sizes and purposes to accommodate the needs of the people who will use them. These factors contribute to the cost of rent in addition to the duration of the rental. A straightforward porta potty rental in Kahului could cost around $170 to $230 per day for a short-term usage. A single standard porta potty rental in Kahului over the weekend is estimated to be in between $170 and $280. A standard handicap porta potty rental can cost you $230 up to $300 over the weekend. The porta potty rental in Kahului for a deluxe toilet is as low as $95 and can go as high as $441 over the weekend.