ATD Tools 356 HNBR R-12 and R-134a O-Ring Assortment, 270 pc.

Highly saturated nitrile butyle rubber works with R-12 and R-134a.Packed in a rugged plastic storage case. Assortment contains:(20) 7/32"x1/16"(20) 1/4"x1/16"(20) 6.8×1.9(20) 5/16"x1/16"(20) 7.8×1.9(20) 8×2(20) 8.8×1.9(15) 7/16"x1/16"(15) 7/16"x3/32"(15) 11×2(15) 12×2(10) 13.9×1.8(10) 9/16"x3/32"(10) 14×2(10) 15×2(10) 17×2(10) 11/16"x1/16"(15) 11/16"x1/8"