2 StallThe UltraLav 2-Stall Restroom Trailer, one of our most popular models, features two fully self-contained restrooms outfitted much like your guests might find in their own home. Each station offers complete privacy; no stalls or side-by-side urinals. The durable and attractive pristine white interiors project an ambience of ultra cleanliness. The 335 gallon waste tank is fabricated from 3/8” polyethylene that resists acids, solvents, and cleaners. With an average capacity of 900+ flushes, it’s perfect for small to mid-sized events.