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 M-MCAL50 Disposable dish, alum, 50mL,pk100 Price on request U-T18325-2S EPA 325 cold trap, UNITY 2/xr and TD-100/xr Price on request U-T9TNX-2S Unity 2/TD-100 Cold trap, Tenax TA Price on request