Sure Flow - Model Series FSR - Low Cost Sight and Rate Indicators
Full scale flow ranges from 5 to 100 GPM (20 to 380 LPM) and 10 SCFM to 250 SCFM. Connection sizes from 1/4-inch to 2-inch NPT, BSP, or SAE. Construction materials: Polysulphone flow tube with Brass end fittings. Spring loaded, mechanical design mounts in any orientation. Reads in GPM and LPM or SCFM. Pressure ratings to 200 PSIG. Clear flow tube allows for view of process and scale.