Royal Potties Check out trailers Luxury Washrooms and more... Royal Potties A Division of Pit Stop Portables Learn More Washroom Trailer 12 trailers and 6 different sizes! We have trailers for all your rental needs. Office Trailer Brand new! Site office, change room or lounge. What ever you need, this trailer can be. Port-a-Potty's A variety of flush, sink, wheelchair accessible, event and construction portable toilets Shower/Handicap Trailer Only one in Alberta! Handicap trailer with showers and 3 stalls, brand new! Royal Potties is a division of Pit Stop Portables offering a unique variety of Executive Washroom Trailers servicing Western Canada.