The ATD 3451 is a compact, high-efficiency Single Stage Vacuum Pump designed for servicing automotive A/C systems. Featuring a 1.8 CFM displacement rate and 1/4 HP motor, this pump is ideal for evacuation of R134a and R1234yf systems.

Key Features:

• High-efficiency single stage design for automotive A/C system evacuation
• Free air displacement: 1.8 CFM
• Ultimate vacuum: 80 microns
• 1/4 HP motor with 110–120V input (60 Hz)
• Dual port access: 1/4″ SAE and 1/2″ ACME connections
• Large cooling fan improves performance and pump lifespan
• Easy-access oil fill and sight glass
• Exhaust port integrated into oil fill location for clean discharge