حلقات O-Ring سيليكون | AS568-906 | داش 906 | متوافقة مع FDA | صلابة 70 | أحمر (400 / عبوة)

The 70 durometer feels just right for my application, not too stiff or too soft. I put these on a hot water valve and they haven't shown any wear after a few weeks of use. That red color makes them easy to spot during assembly, which is a nice bonus.

I needed o-rings that could handle a high-temp sterilizer cycle, and these 70 durometer silicone ones haven't softened or cracked after a dozen runs. The -80°F to +450°F range gives me confidence they'll hold up in the lab. Definitely worth grabbing the 400-pack.

The red color makes them easy to spot during assembly, and the 70 durometer feels just right for my application. I've been using them in a hot air system that cycles from freezing to over 300°F, and they haven't cracked or softened at all.