Answer
Nov 18, 2025 - 11:17 AM
The correct inlet connection (CGA fitting) ensures compatibility with your gas cylinder and safe operation. Acetylene regulators commonly use CGA 300 or CGA 510 fittings, with the Harris 450-15-300 featuring CGA 300, and the Harris 425-15-510 using CGA 510. Having different CGA options allows users to match their regulator to the cylinders they have, ensuring a safe and proper fit.
