Rubber construction, O-rings are one of the simplest, yet most engineered, precise, and useful seal designs ever developed, helps prevent leaks in multiple applications such as drip leaks in faucets. Sizes are specified by the inside diameter and the cross section diameter (thickness).

Superior oil and heat resistant. Ideal to use in air-conditioning system.

Contains 18 popular sizes kept in a convenient re-sealable plastic case:

20Pcs 7/32"x1/16" or 5.29x1.78mm
20Pcs 1/4"x1/16" or 6.07x1.78mm
20Pcs 5/16"x1/16" or 7.68x1.68mm
15Pcs 7/16"x1/16" or 10.82x1.78mm
15Pcs 7/16"x3/32" or 10.77x2.62mm
10Pcs 9/16"x3/32" or 13.95x2.62mm
10Pcs 11/16"x1/16" or 17.17x1.78mm
10Pcs 11/16"x1/8" or 17.04x3.53mm
20Pcs 6.8x1.9mm
20Pcs 7.8x1.9mm
20Pcs 8x2mm
20Pcs 8.8x1.9mm
15Pcs 11x2mm
15Pcs 12x2mm
10Pcs 13.9x1.8mm
10Pcs 14x2mm
10Pcs 15x2mm
10Pcs 17x2mm