The answer to 'which is better pressure regulator or' is that a pressure regulator is generally better than not having one. A pressure regulator helps maintain consistent water pressure in your home, which can provide several benefits over not having one.
Some key advantages of using a pressure regulator include: 1) Protecting your plumbing system from high water pressure that can cause leaks, burst pipes, and damage appliances; 2) Ensuring consistent water pressure to all fixtures and appliances, preventing issues like low-flow showerheads; and 3) Reducing your water usage and energy costs by preventing excessive water flow.