Filter inside low flow modules 800518 & 800519 Back Catalog number: 201119 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GPP3700 Filter, Support Pads, Porous Plastic, 37mm, 20.0µm Price on request 780-0015-05-R Calibrator cable (Gilibrator 2-USB and Gilibrator Price on request GF37TQ Filter, Tissue Quartz, (99.90% retention of 0.3µm Price on request