• Requires 4.5 CFM/90 PSI shop air
• No moving parts, no oil required
• 1.3 CFM air displacement venturi type pump will pull up to 29 inches of vacuum (Hg.) at sea level
• Includes 1/4 inch flare (R12) connection and 1/2 inch ACME (R134a) connection

View Mastercool 91200 Instruction Manual