O-RING -011 .301 ID X .070 W Each Back Catalog number: 1970-0011-R Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended T-13PAM Focusing trap, Photochemical Assessment Monitoring Stations (PAMS), for TT24-7 Price on request C-HSPH HiSorb handle, for manual probe extraction Price on request U-T12ME-2S Materials emissions, C4 - C32, cold trap Price on request