حلقات O-Ring من السيليكون | CS 0.139" × ID 9.984" | AS568-276 | داش 276 | متوافقة مع FDA | صلابة 70 | أحمر (10 / عبوة)

Exactly what I needed to seal a stubborn vacuum chamber port that kept leaking with standard black rings. The -80°F to +450°F range gives me confidence for the hot oil bath cycles I run, and the 70 durometer feels firm but not too stiff to install.

The bright red color makes them easy to spot during maintenance, and the -80°F to +450°F range gives me peace of mind for hot fluid lines. Fit was snug on the 10-inch flange right out of the package, no stretching or fighting needed.

The temperature range on these is what sold me—I needed something that could handle steam without breaking down, and they've held up perfectly so far. The red color makes them easy to spot during assembly too, which is a nice bonus.