Kawaki Flow Sight Model and type : Kawaki FS type flow sight (transparent type sight glass) Model :` FS-I: without flapper FS-II: with flapper FS-B: ball contained FS-I-N: with nozzle FS-IV: for both purposes of forward and reverse FS-IV: for both purposes of forward and reverse FS-W: with wiper Bore size : 3/8B to 6B […]