The new NVE Challenger 304 vacuum pump delivers 210 cfm in a compact and durable package designed specifically for the portable toilet industry. The 304 is built tough to endure the day-to-day workload of the top portable restroom service providers, featuring a ductile iron housing and stainless steel braided oil lines. Ease of maintenance is addressed by design, allowing for a complete vane change without removing the vacuum pump from the truck. Adding to the value of the 304 is the exclusive NVE Oil Management System that allows for the precise delivery of the proper amount of oil. Every 304 is manufactured and supported with pride in the U.S. A two-year warranty against manufacturers’ defects is provided. For more information, call 800/253-5500 or visit www.natvac.com.