حلقات O-Ring من مطاط النتريل بونا-N | AS568-150 | داش 150 | صلابة 70 | أسود (250 / عبوة)

The temperature range on these is what sold me, and so far they've held up fine in a hot oil application where cheaper rings kept failing. For the price of a 250-pack, I've got spares for years and the 70 durometer feels exactly right for standard sealing jobs.

Installed these in my hydraulic press and they sealed perfectly on the first try. The 70 durometer feels just right for medium-pressure applications, and having 250 in one pack means I won't be reordering anytime soon.

Finally, a pack of 250 for less than what I'd pay for a handful at the hardware store. The 70 durometer feels just right for my air fittings, and they slid on without any cracking even in my chilly garage.