The answer to 'how much does pressure regulator cost' is that the cost of a pressure regulator can vary significantly depending on several factors. Typically, pressure regulators for residential plumbing systems range from $50 to $300, but the exact price will depend on the size, material, brand, and complexity of the unit.
Factors that influence the cost of a pressure regulator include the type of material (brass, stainless steel, or plastic), the size of the regulator (1/2-inch, 3/4-inch, or 1-inch), the pressure rating, and any additional features like built-in gauges or shutoff valves. Larger, more heavy-duty regulators designed for commercial or industrial applications will generally cost more than those for a typical home.