The Vantage portable restroom from PolyPortables has a large door opening and a headroom-accentuating Keystone roof. Double-walled construction provides for sturdy corners. It has a ridge-free smooth interior, making for quick cleanups either on construction or special event jobs. In the event of damage, its modular components may be easily replaced. More than 70 percent of its parts are interchangeable with the Integra model, making it convenient to integrate into an established inventory. It is available in an array of colors and may be upgraded with a wide variety of accessories, including a flushing tank and hand-wash stations. 800/241-7951; www.polyportables.com.