SPECSTAR HVAC Vacuum Pump 110V 3/4 HP 7.2 CFM Dual-Stage Rotary Vane — 15 Micron Deep Vacuum

This pump combines a two-stage rotary vane design with a copper-core motor and safety-focused controls to deliver dependable evacuation speed and protection during extended use. Built into a die-cast aluminum housing, it balances portability with durability and includes accessories and features intended for professional refrigeration and HVAC technicians as well as serious DIYers tackling system evacuations.

How fast and deep can this pump evacuate a system?

The SPECSTAR pump is rated at 7.2 CFM and is capable of reaching a maximum vacuum level down to 15 microns (approximately 0.2 Pa), which is suitable for most refrigeration and HVAC evacuation needs. The dual-stage rotary vane configuration concentrates displacement and improved final vacuum compared with single-stage pumps.

• Flow capacity: 7.2 CFM for efficient system drawdown
• Final vacuum: down to 15 microns (0.2 Pa)
• Two-stage rotary vane design for better deep-vacuum performance

What safety and reliability features are included?

This model integrates multiple protections to extend service life and prevent common failure modes. An overload protection system guards the motor from overheating and electrical overload, while an anti-reflux valve limits contaminated gas from re-entering the pump chamber.

• Motor overload protection to prevent burnout
• Anti-reflux device to reduce contamination risk
• Built-in cooling fan to dissipate heat during long runs

What user conveniences make operation easier?

The pump is designed for frequent transport and routine maintenance. An ergonomic carry handle and a compact footprint make it portable; maintenance touches like an oil sight window, a bottom drain valve, and a dedicated oil filter port simplify oil checks and changes while reducing spillage.

• Ergonomic handle for safer carrying and storage
• Oil window and drain valve for quick monitoring and changes
• Oil filter port to minimize leakage during servicing

Which refrigerants and connections does it support?

The intake ports are supplied in common HVAC fittings and the exhaust is designed to separate oil mist and block particulates. It works directly with R134a, R12, R22, and R502 systems; with a supplied 5/16-inch adapter it can also be used on R410A systems.

• Intake fittings: 1/4 SAE, 1/2 ACME, 3/8 SAE for broad compatibility
• Exhaust treatment separates oil mist and keeps impurities out of the chamber
• Adapter available for R410A systems when using 5/16-inch adaptor

The SPECSTAR pump ships with two bottles of vacuum pump oil (230 ml and 330 ml) and is ETL certified for electrical safety. Its die-cast aluminum body resists corrosion and keeps weight manageable for job-site mobility.

Who is this for? This pump is aimed at HVAC technicians, refrigeration service professionals, lab technicians, and serious hobbyists who need a reliable, portable two-stage vacuum pump for system evacuations, leak testing, and processes that require deep vacuum levels. If you require a compact, safety-conscious unit with multiple common fittings and included oil supply, the SPECSTAR 3/4 HP 7.2 CFM vacuum pump is built to deliver consistent performance in commercial and residential service environments.