Do you want to be 100% sure of the tightness of the installation? In addition to the perfect cups, the right tightening force, you will also need a thread sealant paste - LeakLock.
Condensate coupler - it is an ideal connection for reducing the diameter. Silicone-plastic design, variety of diameters. It is worth having several in the case.
A sturdy air conditioner hanger, often called a frame or console. Such a bracket is indispensable for solidly attaching the air conditioner to the wall. MS230 Rodigas is 42cm deep
A hose dedicated to vacuuming Refco brand refrigeration systems. VCL-60 hose is resistant to refrigerants and oils, and in addition, it does not kink under vacuum