حلقات O من السيليكون | AS568-442 | داش 442 | متوافقة مع FDA | صلابة 70 | أحمر (8 قطع/عبوة)

I needed o-rings that could handle high heat for a lab application, and these red silicone ones fit perfectly right out of the pack—the -80°F to +450°F range gives me peace of mind. They're pliable but sturdy enough to hold a seal without deforming.

With the FDA-compliant silicone and that 70 durometer, they feel solid, not squishy. I was surprised at how easy they were to seat without any tools—just press and they hold.

The high-temp rating on these is no joke—they fit perfectly on my hot water system without any deformation. The red color makes them easy to spot during assembly, and the 70 durometer feels just right for a firm seal.