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 NDV32_5L New DEVEX gas sampling bags with PTFE dual-valve, 5L Price on request U-T1HBL-2S High boilers, C6 - C40, cold trap Price on request U-T2GPH-2S UNITY 2 & TD-100 Cold trap general purpose hydrop Price on request