حلقات O من السيليكون 0.139" CS × 10.484" ID | AS568-278 | داش 278 | متوافقة مع FDA | صلابة 70 | أحمر (10/عبوة)

Needed a precise fit for a high-temp food processing line, and these FDA-compliant red rings handled the 400°F sterilization cycle without any issue. The 70 durometer silicone felt just right for the seal—not too stiff, not too soft.

Popped one of these in my hot water heater after the old gasket failed, and the -80°F to +450°F range gives me a lot more confidence it won't crack in the cold basement. Perfect fit on the 10.5 inch flange, and the red silicone feels noticeably more pliable than the black ones I've used before.

These red ones hold up way better in my hot water line than the black rubber ones I had before. The 450°F rating gives me peace of mind, and the color makes them easy to spot during disassembly.