Sampling Station WSS-600 with sensor for measuring free chlorine and PH value CEMTROL-type measuring amplifier with input amplifier for free chlorine and pH value Water sampler 10m PVC tubing d 6/12 as sampling line 2 metering pumps CEMDOZ FL3 FL4(pleas specify pump model when ordering PVC metering head, 4/6 tubing connections 2 suction lines, type SG, DN 4, 540 mm long, PVC 10m PE tubing d 476 as metering line 2 injection fittings, type S, PVC/Viton