PB Motor Tech 4.5 CFM Vacuum Pump with 3-Way AC Manifold Gauge Set — 1/3 HP, Carry Tote

PB Motor Tech 4.5CFM Vacuum Pump with 3-way AC manifold gauge set is a complete, portable kit for evacuating, testing, and charging automotive and domestic A/C systems.

This all-in-one service package combines a 4.5 CFM single-stage vacuum pump and a corrosion-resistant 3-way manifold gauge with color-coded hoses and quick couplers, delivering the tools needed for refrigerant evacuation, pressure diagnosis, and controlled charging. Designed to be durable and user-friendly, the kit includes a puncturing can tap, valve core tool, adapters, and a tote for organized transport. Read on for clear answers to common buyer questions about performance, compatibility, and use.

How much airflow and power does the vacuum pump provide?

The pump features a 1/3 HP motor that produces a 4.5 CFM flow rate, providing fast evacuation of A/C systems. It’s built for frequent shop use while balancing speed and compact size.

• 1/3 HP electric motor for reliable operation
• 4.5 CFM flow rate for efficient evacuation
• Single-stage design suitable for most automotive and domestic systems
• Aluminum alloy housing for heat dissipation and corrosion resistance

What does the manifold gauge set include and how durable is it?

The three-way manifold is constructed from corrosion-resistant aluminum and features large, easy-to-read dials protected by rubber coating. The kit arrives with hoses, quick couplers, adapters, a puncturing can tap, and a carrying tote—everything needed for on-the-go diagnostics and charging.

• 3-way manifold with transparent sight window to check refrigerant flow
• Three 4-foot color-coded hoses (high, low, service) rated 600 psi working / 3000 psi burst
• Durable metal R134a quick couplers and brass adapters included
• Protective rubber-coated dials and sturdy carrying tote for organized storage

Which refrigerants and systems are compatible with this set?

PB Motor Tech designed the kit for wide compatibility with common refrigerants used in vehicles and household A/C units. The included adapters and can tap make it flexible for charging and recovery tasks without needing multiple separate tools.

• Compatible with R134A, R410A, R22, and R404A refrigerants
• Suitable for automotive air conditioning and domestic HVAC systems
• Includes a 410 adapter and puncturing can tap for refrigerant cans
• Valve core tool and carrying tote simplify field use and maintenance

What maintenance and operational precautions should I know?

The pump ships without oil, so adding the correct vacuum pump oil is essential before first use to avoid motor damage. The unit includes practical design features—sight glass, non-slip handle, and rubber feet—to make routine checks and transport easier.

• Must add #32 or #68 vacuum pump oil before operation
• Sight glass on oil tank for quick level and quality checks
• Non-slip handle and rubber feet reduce vibration and improve stability
• Inlet filter prevents oil backflow and extends service life

Who is this for: Technicians, experienced DIYers, and mobile service professionals who need a compact but complete A/C evacuation and charging solution will benefit most from this set. It’s best for people who understand refrigerant handling and follow safety and legal requirements for refrigerant work. If you need a portable kit with industrial-style build quality, clear gauges, and the accessories to perform most refrigeration service jobs, this PB Motor Tech package offers a balanced mix of performance, compatibility, and convenience.