PB Motor Tech 4.5 CFM Vacuum Pump and Brass Manifold Gauge Kit — R134A/R12/R22/R502, 3‑Way

This compact kit combines a single-stage 4.5 cubic-feet-per-minute vacuum pump with a solid-brass 3-way manifold gauge set engineered for R134A, R12, R22 and R502 systems. Designed for technicians and informed DIYers, the package includes color-coded hoses, quick couplers and accessories so you can evacuate lines, read pressures clearly, and prepare systems for refrigerant recovery or charging.

How quickly and reliably does the pump remove moisture and air?

The single-stage pump uses a 1/3 HP motor and delivers a 4.5 CFM flow rate for efficient evacuation of small to medium systems. A reinforced aluminum alloy housing helps dissipate heat while the inlet filter reduces oil backflow to prolong pump life.

• 4.5 CFM flow supports fast pull-down on automotive and household A/C lines
• Inlet filter prevents contamination and oil migration
• Rounded sight glass shows oil level and condition for timely maintenance
• Rubber feet cut vibration and improve stability during operation

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

The kit features a solid-brass 3-way manifold with extra-large, rubber-coated dials and a clear sight glass for quick, legible readings. Hoses are color-coded and rated for high working pressure so you can safely service different refrigerants without confusion.

• 3-way brass manifold for high durability and corrosion resistance
• Three 4-foot color-coded hoses (high, low, charge) rated 600 psi working
• Two R134a quick couplers, puncturing can tap, 410 adapter, and valve core tool
• Large rubber-coated gauges and sight glass for easier pressure monitoring

Which refrigerants and systems is this kit compatible with?

This set is built to work with common automotive and domestic refrigerants including R134A, R12, R22 and R502. Its accessories and hose ratings make it suitable for a variety of service tasks, from evacuating lines to preparing for refrigerant recovery or charging.

• Compatible with R134A, R12, R22, R502 refrigerants
• Useful for cars, light trucks, and home HVAC servicing
• Adapters and couplers included to handle common service ports
• Hoses and manifold rated to withstand routine workshop pressures

What should I know before I start the pump?

The pump is shipped without oil to prevent leakage during transport; you must add recommended vacuum pump oil before operation. Use #32 or #68 vacuum pump oil to avoid motor damage—running the pump dry can cause jamming or burn out in just minutes.

• Must add #32 or #68 vacuum pump oil prior to use
• Check sight glass for oil level and clarity before each job
• Non-slip handle and rubber feet make transport and placement safer
• Contact PB Motor Tech BMT support for questions; responses within 24 hours

Who is this for? If you are a professional technician, independent mechanic, or a knowledgeable DIYer who works on automotive or household air conditioning systems, this PB Motor Tech BMT kit offers a durable, ready-to-use solution. It bundles a reliable vacuum pump with a heavy-duty brass manifold gauge set and all essential accessories so you can evacuate lines, take accurate pressure readings, and prepare systems for charging or recovery. Note: basic refrigeration knowledge and safe handling practices are required; always follow refrigerant regulations and use the recommended pump oil before operation.