Teflon Bag, Septum Valve (50L) Back Catalog number: TE-28 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800843 Carrying Case, Hard Side, Deluxe (18" x 13" x 7"), Price on request GF25TQ Filter, Tissue Quartz, (99.90% retention of 0.3µm Price on request 811-1710-01-R Gilibrator 3, High Flow Dry Cell (Flow Range 1 - 3 Price on request