I don't have a unique or defined weight for the equipment. It does include the scuba set itself (whatever is required to provide gas for breathing), a harness and accessories, and other support equipment.
We do not have a unique or defined weight for these equipment. But  scuba set which t is only the diving equipment which is required for providing breathing gas to the diver should be big enough
Scuba Diving is an interesting thing.  There's a lot of ocean science involved. Yes, scuba diving involves being completely untethered from the surface air supply. Have you ever been scuba diving? No, I haven't. How far down can scuba divers go? I don't know for sure, but divers do carry their own breathing source, and therefore have more freedom to dive. If they use gas as the form of breathing, at what depths can scuba divers descend? Like I said, I'm not sure, but they do sometimes carry decompression gas or gas for emergencies. How much weight does the scuba gear weigh?
Although strictly speaking the scuba set is only the diving equipment which is required for providing breathing gas to the diver, general usage includes the harness by which it is carried, and those accessories which are integral parts of the harness and breathing apparatus assembly, such as a jacket or wing style buoyancy compensator and instruments mounted in a combined housing with the pressure gauge, and in the looser sense it has been used to refer to any diving equipment used by the scuba diver, though this would more commonly and accurately be termed scuba equipment.