Teflon Bag, On-Off Valve (1.2L) Back Catalog number: TE-21 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 780-0015-01-R Calibrator cable (Gilibrator 2), for automatic cal option Price on request 360-0201-01 Operation Manual/Software CD for Deluxe Nephelometer, TSP, PM-2.5, PM-4, PM-10 Price on request 910-0906-EU-R GilAir-Plus STP 5-Pump Starter Kit, Euro cord Price on request