Trident Marine Single Stage Regulator w/300 PSI Pressure Gauge w/Wall Mount [1211-1411]Single Stage Regulator with 300 PSI Pressure Gauge with Wall Mount UL Listed, die cast body with 3 8 FTP outlet is assembled with 300 psi leak test gauge (low profile, water tight, stainless steel), and wall mount brackets. Connect pigtail hose (item 1014 1415 20 or 1014 1401 20) to regulator inlet and one or more cylinders (one at a time). By mounting this low pressure regulator on the wall, it saves space in the LPG locker, especially when adding a