حلقات O من السيليكون | AS568-473 | داش 473 | متوافقة مع FDA | صلابة 70 | أحمر (4 / عبوة)

Finally found o-rings that actually handle the 400°F steam in my autoclave without hardening. The red color makes them easy to spot during maintenance too.

Needed a replacement set for a high-temp application and these handled the heat without any deformation. The -80°F to +450°F range is exactly what I was after, and the 70 durometer gives them a firm but flexible feel. Fits perfectly on the port I tested it with.

I needed a high-temp seal for a steam valve, and these handled the 400°F range perfectly—no softening or leakage at all. The 70 durometer feels just right for a firm but not rigid fit.