حلقات O من السيليكون | AS568-465 | داش 465 | متوافقة مع FDA | صلابة 70 | أحمر (4 / عبوة)

These will handle way more than the standard rubber ones I've used before, given the -80°F to 450°F range. I just used them to seal a hot oil line and they haven't softened or deformed at all. The red color is a nice bonus for spotting them in a parts bin.

The bright red color made it easy to spot during installation, and the 70 durometer silicone feels tough yet flexible. Popped right into place for a high-temp line I was fixing, and it’s held up perfectly against a steam test. Exactly what I needed for the application.

I needed o-rings that could handle both extreme cold and high heat, and these silicone ones fit the bill perfectly. The 70 durometer feels durable yet flexible enough for a snug seal on my equipment.