Nephelometer O-Ring, Replacement Back Catalog number: 385-0115-01 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 910-0204-02 GilAir-3 Clock [ATEX], Starter Kit, 230V, Euro Plu Price on request 811-1501-01 Tubing, 3/8 in. ID x 36 in. long for Gilian 10i and Gilian 12 Price on request 910-0202-02 GilAir-3 Basic [ATEX], 5-Pack (With Universal 5-Un Price on request