O-RING-234 For High Flow Damper Plate Back Catalog number: 1970-0234 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended HEDDEV31_5L DEVEX gas sampling bag, stopcock straight valve, 5L Price on request U-T6SUL-2S Sulphur/labile cold trap, Price on request P-CP001 VOC-Mole cap assembly,pk 1 Price on request