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-11OP Ozone precursors trap, TT24-7 Price on request HEDTDLC-S Repalcement septum for Tedlar bag TDLC31Z Price on request C-POD-KIT04 POD Starter kit: Carbograph 2TD Price on request