O-Rings, 23mm × 3mm i.d.,pk 20 Back Catalog number: P-CP020 Manufacturer: MARKES INTERNATIONAL LIMITED Availability: In the manufacturer's stock Price on request - + Recommended FEP32_2L FEP gas sampling bag with PTFE dual-valve, 2L Price on request OST-201-3421 Tube gas sampling 350, nozzle (GL14), septum Price on request U-COV45 O-Ring, low-emission, 5.92mm i.d. pk10 (6mm Difflo Price on request