Beverage dispensing systems comprised of pressure regulators being parts of machines, non-metal flexible tubing, valves as machine components, and faucets, and parts for such dispensing systems; aerated beverage making machines and parts therefor; mixing machines, namely, beverage mixers; machines for making aerated and non-aerated beverages, and parts therefor; non-electronic, non-refrigerated machines for dispensing beverages, and parts therefor; post-mix soda guns, namely, beverage dispensing machines, not automated and not heated or cooled, and parts therefor; post-mix soda guns, namely, machines for making beverages from syrups and water, and parts therefor; post-mix bar guns, namely, handheld beverage dispensing machines, not automated and not heated or cooled, and parts therefor