Teflon Bag, Septum Valve (4.7L) Back Catalog number: TE-27 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 297-0012-01 USB Communications Cable for Nephelometer Price on request 910-1301-EU Gilian 800i,Starter Kit, EU Cord Price on request 811-9917-05 Go-Cal Dampening Module Price on request