Suitable for purging or low flow rate measuring. The standard mounting is ¼”BSP rear, although several arrangement of flanged or hose pipe connections are offered on request. Ranges : 0.6 to 160 LPH of water at ambient temperature. 10 to 5000 NLPH of air at NTP Accuracy : ±2 of FSDAccessories : Built in needle valve. DP regulator. Panel Mounting clamps. High & Low Flow Alarms.