حلقات O من السيليكون مقاس 0.103" CS × 1.986" ID | AS568-136 | داش 136 | متوافق مع FDA | صلابة 70 | أحمر (100 / عبوة)

These handle the heat way better than the black rubber ones I’d been using—I’ve had them on a steam line at 300°F for three weeks now with zero softening or deformation. The 70 durometer feels firm but still seats easily, and the 100-count pack means I’ve got spares for every flange in the shop.

Needed a reliable seal for a home water filtration setup and these red silicone rings fit the AS568-136 spec perfectly. They’re noticeably pliable but hold firm, and the pack of 100 should last me years.

The high-temperature rating of -80°F to +450°F is exactly what I needed for my oven door, and these red silicone rings fit perfectly without any trimming. Much better than the old rubber ones that would crack after a few months.