O-RING-007 .145 ID x .070 W for LFS-113 (5 Requi Back Catalog number: 1970-0007 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended U-CENKIT Starter Kit: Centri booster pack (DiffLok caps and O-rings) Price on request U-HSVB-20 Replacement Vial Block, for HiSorb Agitator Price on request U-T16GHG-2S Greenhouse gases C2 - C14 cold trap Price on request