The Big Brother Oilless Vacuum Pump allows operators to perform multiple specific gravity tests at the same time. This heavy-duty unit combines large capacity with maintenance free operation. The 1/3hp motor pulls 29.6in Hg (759.46mm) with free air displacement up to 99L/min (3.5cfm) and ultimate pressure of 9.0 Tor

• Replacement parts readily available
• Designed for DRY applications only
• No oil to change ever! 
• Pump should be purged with air for 10 minutes following each test. 
• Great for higher altitudes
• Great for labs running more than one test a day
• Can Run 2 Rice Tests Simultaneously
• Comes with 4” of tubing and a hydrophobic filter! (shipped separately)
• One week lead time from the manufacturer