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 T-6EMP Empty cold trap, TT24-7 Price on request HEDFEP32_5L FEP gas sampling bag with PTFE dual-valve, 5L Price on request HEDDEV41_5L DEVEX sampling bags 5L, stopcock & septum Price on request