Will I need new refrigerant after installing this condenser?

You'll need to have the system evacuated and recharged by a certified technician after installation. The old refrigerant must be captured, and the new condenser requires a fresh charge to operate properly.

Does this come with new O-rings and seals?

The condenser assembly does not include replacement O-rings or connection seals. Pick up new seals from your parts supplier — they're cheap insurance against leaks at the fittings.

Can I install this myself or do I need a shop?

Installation requires AC system knowledge and recovery equipment. Most DIYers hand this off to a shop because venting refrigerant is illegal and unsafe without proper tools. Budget for professional installation and evacuation/recharge.