حلقات O-Ring سيليكون 0.139" CS × 2.234" ID | AS568-228 | داش 228 | متوافقة مع FDA | صلابة 70 دعم | أحمر (80/عبوة)

I needed a replacement for a high-temp seal in my lab setup, and these red silicone rings with 70 durometer fit perfectly and haven't softened at all after several heat cycles.

The temperature range is what sold me—these handle everything from my fridge lines to a hot water setup without a single leak. The red color makes them easy to spot during maintenance, and all 80 arrived intact and uniform.

These red o-rings snugged up perfectly in my hot water recirculation pump housing, and the 70 durometer feels just right for a lasting seal. I also appreciate the high-temp rating, since that pump runs near boiling.