حلقات O من السيليكون 0.139" CS × 3.359" ID | AS568-237 | داش 237 | متوافقة مع FDA | صلابة 70 | أحمر (50/عبوة)

I’d been using standard rubber gaskets in high-heat applications and needed something that wouldn’t crack. These silicone o-rings handle up to 450°F, so they’ve held up perfectly in my setup without any visible wear.

The red color makes them easy to spot during inventory, and the 70 durometer hardness feels just right for a snug seal without being stiff. I've used them in a -60°F freezer test and they held up without cracking, which is exactly what I needed for the temperature range.

The bright red color makes them easy to spot during assembly, and the 70 durometer silicone feels just rigid enough for a snug seal on my filter housing. They fit the 3.359" ID perfectly with zero stretch needed.