حلقات O من السيليكون | AS568-151 | داش 151 | متوافقة مع FDA | صلابة 70 | أحمر (55 / عبوة)

The 70 durometer feels solid but still flexible enough to seat perfectly in the groove. I was surprised how well these handled my 400°F test run without any deformation.

I needed a reliable seal for a high-temperature brewing setup, and these silicone o-rings handle up to 450°F without any issues. The 70 durometer feels just right—not too stiff, not too flimsy—and the red color makes them easy to spot in my parts bin.

I needed o-rings that could handle extreme heat for a lab setup, and these red ones have held up perfectly at over 400°F without any cracking. The 70 durometer feels just right for a tight seal, and the 55-count package gave me plenty of spares.