Filter Cap, Replacement for Nephelometer Back Catalog number: 385-0113-01 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 297-0012-01 USB Communications Cable for Nephelometer Price on request 801453 O-Ring/Gasket Kit, GilAir-5 Price on request 811-0920-01 Replacement Valve Caps (Pack of 2) Price on request