PTFE orifice plate flowmeter, 2in line size, 1.450in bore, 0.7 Beta, water capacity: 320in d.p. W/C, 147.74 GPM flow; air capacity: 372.09 SCFM @ 14.7 psia, 639.87 SCFM @ 20 psig, 1227.63 SCFM @ 100 psig; 2 lb.