SPARKLESS AND EXPLOSION-PROOF DESIGN: The VIVOHOME dual stage rotary vane vacuum pump features an ignition-proof switch and sparkless motor for safe operation with A2L refrigerants like R32 and R1234yf; Powered by a 1/2 HP (375 W) motor running at 3456 r/min, it delivers 5 CFM airflow and achieves 0.2 Pa vacuum in just 3 minutes—ideal for precise HVAC system evacuation VERSATILE SYSTEM COMPATIBILITY: Features dual 1/2” ACME and 1/4” SAE ports, plus four adapters (2× 1/4” male to 5/16” female for R410a, 1× 1/4” male to 1/2” female, and 1× 1/4” male to 1/2” female left-hand) for R32, R1234yf, R410a, R134a, R12, R22, and R502 air conditioning systems; Perfect for HVAC servicing, vacuum packaging, oil distillation, and resin defoaming SAFE & QUIET OPERATION: Motor current protection prevents overload and phase loss, avoiding overheating or damage; A 304 stainless steel coarse filter blocks contaminants from entering the pump chamber; The metal layer and metal exhaust cotton effectively capture oil mist, and the latter also helps reduce noise; Enhanced cooling system further lowers operating noise to below 65 dB, ensuring a cleaner, quieter, and safer workspace PORTABLE & USER-FRIENDLY: Weighs just 19.5 lb with an ergonomic handle and non-slip feet for easy transport; Integrated die-cast aluminum housing reduces leaks, while the visible oil window and bottom drain valve simplify maintenance HIGH ACCURACY MANIFOLD GAUGE: Delivers ±1.6% reading accuracy with a wear-resistant oil-filled core and dry dial for consistent performance—even in cold environments; Large sight glass and color-coded dials make it easy to monitor refrigerant flow in R32, R410a, R1234yf, and R134a systems DURABLE & SHOCK-RESISTANT: Built with a shock-resistant core to protect internal mechanisms, this gauge features a zero-setting calibration screw and supports R32, R410A, R1234yf, and R134a; Its rubber-wrapped aluminum body ensures durability, while a convenient hook allows for hands-free use 4 COLOR-CODED HOSES: Quickly identify high-pressure (red), low-pressure (blue), charging/recovery (yellow), and vacuum (black) lines; Made of triple-layer reinforced rubber with leak-proof seals, these hoses are flexible, durable, and resistant to wear—compatible with R32, R1234yf, R410a, R134a, R12, R22, and R502 systems Keep your AC systems running at peak performance with the VIVOHOME 1/2 HP 5CFM Dual Stage Vacuum Pump and 4-Way Gauge Kit. Safe sparkless motor, wide refrigerant compatibility, and reliable suction power make automotive air conditioner maintenance simple.