Flow Rate：3.5 CFM (100 L/min) Refrigerant Type：R1234yf, R32, R454B, R134a, R410A, R22, R12, and R502. PORTABLE & USER-FRIENDLY: Weighs just 18.6 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.