The Vulcan Hart 00-408279-00022 Pressure Regulator delivers stable and controlled natural-gas pressure to help commercial equipment operate safely and efficiently. This 3/4" regulator works by automatically adjusting its internal mechanism to maintain an outlet pressure between 3" and 6" water column, even when supply levels vary. With a 1/2 PSI rating, it supports consistent combusti... https://partsfe.com/pressure-regulator34-nat-for-vulcan-part-00-408279-00022