Nephelometer O-Ring, Replacement Back Catalog number: 385-0115-01 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9910-01 Conductive Plastic Cassette With Transport Clip An Price on request GF25TQ Filter, Tissue Quartz, (99.90% retention of 0.3µm Price on request 810-0903-01-R STP Pump Only (No Dock) Price on request