Answer
Nov 18, 2025 - 11:17 AM
Maximum inlet pressure defines the highest cylinder pressure the regulator can safely handle. Both the Harris 450-15-300 and Harris 425-15-510 are rated for up to 500 PSIG, which is more than sufficient for typical acetylene cylinders. Choosing a regulator with a maximum inlet pressure that matches or exceeds your cylinder rating provides peace of mind and safe operation. With several options at this rating, you can confidently choose the right model for your needs.
