Goplus Air Operated Vacuum Pump for AC/R-134a R-12 – Venturi 4.2 CFM, Portable Airline-Powered

Goplus Air Operated Vacuum Pump is a compact, pneumatic vacuum tool that evacuates air-conditioning and refrigeration systems to a deep vacuum in under two minutes.

This Venturi-style, air-driven unit (4.2 CFM equivalent performance) removes moisture and non-condensables from automotive and household HVAC systems so refrigerant charging is safer and more effective. It requires only an airline connection — no electricity — and is supplied with fittings for common automotive refrigerants such as R-134a and R-12. Lightweight and portable, the pump is useful for workshops, roadside service, and home appliance servicing where a quick, reliable pull-down is needed.

How quickly will this pump evacuate a typical automotive AC system?

The Goplus air vacuum pump uses a Venturi vacuum generator to reach a deep vacuum rapidly; most light to medium automotive systems achieve a full pull-down in under two minutes when supplied with adequate compressed air. Actual time depends on compressor supply pressure, hose length, and system size. For accurate work, monitor with a gauge set and confirm the vacuum level before charging refrigerant.

• Performance: 4.2 CFM equivalent evacuation rate
• Typical pull-down: under two minutes on properly prepared systems
• Power source: standard compressed airline (no electrical hookup)
• Compatibility: R-134a and R-12 systems with included fittings

What connections and fittings come with the Goplus pump?

The pump arrives ready to hook up to a shop airline and an AC service manifold. Included fittings adapt the Venturi outlet to common automotive refrigerant service ports so you can connect quickly. Lightweight construction keeps the kit simple to carry and use in field repairs.

• Included components: 1 x vacuum pump (part number AT4280)
• Fittings: service fittings for common automotive ports included
• Air inlet: standard airline connection compatible with shop hoses
• Weight: 0.99 pounds, easy to transport

Is this pump safe and suitable for home appliances like refrigerators and freezers?

Yes — the pump is appropriate for evacuating refrigerant lines on refrigerators, freezers, and home air conditioners, provided you follow appliance manufacturer guidance and local refrigerant handling laws. Its air-powered design makes it convenient for home service where electricity or large vacuum pumps are impractical. Always verify system compatibility and use proper gauges and refrigerant recovery procedures when servicing sealed systems.

• Applications: automotive AC, home air conditioners, refrigerators, freezers
• Operation: air-driven vacuum avoids need for electrical power
• Best practice: use with manifold gauges and follow refrigerant regulations
• Portability: compact for field and garage use

How do I operate and maintain the Venturi vacuum pump safely?

Operation is straightforward: attach the airline, connect the service hoses, open system valves, and watch gauges as the pump pulls vacuum. Routine maintenance is minimal — keep inlet filters clean and inspect fittings for wear. Store dry and avoid heavy impacts to preserve the aluminum housing and internal components.

• Start-up: connect airline, attach service hoses, then open valves
• Monitoring: confirm vacuum level with gauges before charging refrigerant
• Maintenance: clean filters, check fittings, store in dry location
• Safety: follow refrigerant handling regulations and PPE recommendations

Who is this for: technicians, DIY mechanics, and homeowners who need a lightweight, fast-acting vacuum solution for air-conditioning and refrigeration service. The Goplus Air Operated Vacuum Pump (AT4280) is ideal where portability and non-electrical operation matter — roadside service, small shops, and home appliance work — and for users who already have a compressed air source and basic gauge set. It provides a simple, economical way to evacuate moisture and air from systems before refrigerant charging, when used according to local regulations and best practices.