When you need pressurized air or gas, you need laboratory compressors from New Star Environmental. We're so confident in our product's reliability and affordability, our laboratory compressors are the only compressors in the market to have a no questions asked 2 year/3,000 hour warranty. So whether you need an oxygenated water supply or are conducting bubble tests, aeration tests, or agitation in fermentation tanks, we have the laboratory compressors you need.