Rocker vacuum pumps are piston-powered, oil-free pumps. With innovative electronic, mechanical technology and human design concept make Rocker's family quiet and low vibration, compact and light weight, clean and maintenance free, safe and comfortable. Check our complete line of Rocker vacuum pumps today. From liquid filtration and suspended solid sampling to air sampling and aeration bubbler tests, your lab requires a dependable and accurate vacuum pump. That's why New Star Environmental carries a variety of high quality Rocker pumps.