Flowmeter for 2" Pipe – 150-500 LPM, Flowmeter for 2.5" Pipe – 250-900 LPM, Flowmeter for 3" Pipe – 300-1125 LPM, Flowmeter for 4" Pipe – 500-2000 LPM, Flowmeter for 6" Pipe – 900-3900 LPM, Flowmeter for 8" Pipe – 1800-7200 LPM