حلقات O من السيليكون | AS568-420 | داش 420 | متوافقة مع FDA | صلابة 70 | أحمر (11 / عبوة)

These red silicone o-rings feel a bit firmer than the black ones I've used before—the 70 durometer is just right for my application. They slip into the groove cleanly and resist that greasy feel. A solid match for high-temp sealing.

I needed a specific dash 420 size for a high-heat gasket repair, and these red silicone rings fit perfectly and feel durable at 70 durometer. They sealed tightly on first try with no leaks during testing up to 400°F.

The temperature range on these is wild—-80°F to +450°F means I can use them for both my cryo setup and hot oil lines without swapping anything. The red color makes them easy to spot against dark metal, and the 70 durometer feels firm yet flexible. Package of 11 is plenty for my small projects.