Spare tube assembly, ACTI-VOC Back Catalog number: SERZ-1097 Manufacturer: MARKES INTERNATIONAL LIMITED Availability: In the manufacturer's stock Price on request - + Recommended U-T18325-2S EPA 325 cold trap, UNITY 2/xr and TD-100/xr Price on request U-T2GPH-2S UNITY 2 & TD-100 Cold trap general purpose hydrop Price on request U-COV108-L O-ring, Injector Liner, Brown, Low Temp, pk 10 Price on request