Oxygen Flowmeter, 1/32-4 LPM x 1/8" FNPT x DISS M OutletFlotec Oxygen Flowmeter, 1/32-4 LPM$181.25PriceShipping Terms PolicyOut of StockFlow Settings1/32, 1/16, 1/8, 1/4, 1/2, 3/4, 1, 1 1/2, 2, 3, 4 LPM