Flame King 2-Stage Auto Changeover Propane Gas RV Regulator 2 – 15″ Pigtails
The Auto-Changeover LP Regulator allows you to hook up 2 Propane tanks. The regulator automatically switches over to the second tank once the first one runs out and vice versa. The indicator changes color to let you know when a tank has been depleted and needs to be refilled.