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 C-POD-S1P0 POD Support Plate, with clip, pk 100 Price on request OST-201-0246 Screw caps for screwthread tubes GL14, bore 8mm Price on request U-T2GPH-2S UNITY 2 & TD-100 Cold trap general purpose hydrop Price on request