حلقات O-Ring بونا-ن نيتريل | AS568-152 | داش 152 | صلابة 50 (125 / عبوة)

Set them to seal a coolant line on my old tractor; the -40°F rating gives me peace of mind for winter starts. Fit snugly into the groove without any struggle.

These 50-durometer o-rings are soft enough to seal perfectly on my plastic fittings without cracking them. The 125-count pack should last me through several plumbing projects. Worked great after sitting in my toolbox for a month in the garage heat.

I needed a bunch of these for a hydraulic repair job, and the 50 durometer felt just right for the application. They seated perfectly in the groove with no binding, and the package gave me plenty of extras for future use.