Series Heat Pump A/C Condensers & Systems. DIY installation using the no vac pre-charged linsets. No specialty HVAC tools required. Kink Resistant for Easier Bending During Installation. 100% Accurately Precharged R410A Refrigerant standard sizes: 15 ft, 25ft, 35ft, 50ft (25′ included with package). Optional No-Vac® Couplers can be used toRead More