Nephelometer Pump Assy, Replacement Back Catalog number: 380-0035-01 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended TE-24 Teflon Bag, On-Off Valve (50L) Price on request 800413 Kit-Damper-Diaphragm Low Flow Price on request 783-0013-01-R Battery Pack AA Alkaline Price on request