O-Ring, Size 003, pk 10 Back Catalog number: U-COV03 Manufacturer: MARKES INTERNATIONAL LIMITED Availability: In stock 2 pcs Price on request - + Recommended U-T1KORI Empty cold trap, KORI-xr Price on request T-12AM Focusing trap, Air Monitoring, for TT24-7 Price on request U-TO15-KXR Focusing trap, Trace TO-15, for UNITY-xr with Kori-xr Price on request