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 SERZ-1070 Spare bag sampling accessory, ACTI-VOC Price on request C-POD-KIT04 POD Starter kit: Carbograph 2TD Price on request U-T22117-2S Focusing trap, China Air 117, for for UNITY-xr, TD100-xr, Centri Price on request