470 Silicone O-ring 70A Durometer Red, Sterling Seal and Supply (25 Pack)

Made of silicone for use with a variety of chemicals and fluids O-ring Size - Actual (b) per AS568A Metric O-ring Size per AS568A (b)ID (Nominal): 21 OD (Nominal): 1/4 CS (Nominal): 21-1/2 Durometer (hardness) of 70A for resistance to penetration Round cross-section to provide a seal between cylindrical overlapping surfaces Can be used across a wide temperature range from -65 degrees F (-54 degrees C) to 450 degrees F (232 degrees C)