Scully 01416 TS-120 Snorkel Gauge For 42" - 44" Depth Oil Tanks The Level Indicator with a Floating Burner Feed Line Takes clean, dry fuel from 1” below the surface Ends ice and sludge clogged fuel lines; pays for itself when just one service call is eliminated Ideal for mobile homes and other low burner firing rates Provides a return line opening. Two-piece assembly makes installation easier. One unit fits both 1 1/2″ and 2″ tank openings.