R-12 O-Ring (ID: 18 mm, CS: 2.5 mm, OD: 23 mm) (10 to 120 O-Rings) by X1 Tools: Amazon.com: Industrial & Scientific
Amazon.com: Viton Sheet Rubber – High Performance, High Temperature, Chemical Resistant, Much More - Commercial Grade 75A+/-5 Medium Hardness, Cinnamon Scented 062x12x12 : Industrial & Scientific
Amazon.com: Fits GM 6.2/6.5 Premium Viton Diesel Return Line Kit (with line clamps) : Automotive
Wilmad LG-1021-108 Glass Joint with Viton O-Ring, 20 mm Joint Size: Amazon.com: Industrial & Scientific
1" CAMLOCK Gasket, CAM and Groove, Green VITON/FKM, (1 Gasket): Amazon.com: Industrial & Scientific
Amazon.com: Viton Sheet Rubber – High Performance, High Temperature, Chemical Resistant, Much More - Commercial Grade 75A+/-5 Medium Hardness, Cinnamon Scented 062x12x12 : Industrial & Scientific
Wilmad-LabGlass LG-10284-100 Replacement Viton O-Ring Set for Stopcocks LG-10282 and 10283, 0-4mm: Amazon.com: Industrial & Scientific
Viton Sheet Rubber – High Performance, High Temperature, Chemical Resistant, Much More - Commercial Grade 75A+/-5 Medium Hardness, Cinnamon Scented 062x12x12 : Industrial & Scientific - Amazon.com
Wilmad LG-1022-557 Viton O-Ring, Size 222, 37.7 mm ID, 3.5 mm Width: Amazon.com: Industrial & Scientific