حلقات O من بونا-ن نيتريل بقطر داخلي 8.475" وقطر مقطع 0.21" | AS568-365 | داش 365 | صلابة 70 | أسود (40/عبوة)

Replaced the old dried-out o-rings on my pressure washer with these and the 0.21" cross-section fit perfectly snug in the groove. No leaks so far, and I like that they handle up to 250°F since the water gets pretty hot.

Popped these on my old hydraulic cylinder and they seated perfectly with no leaks. The 70 durometer feels just right—firm enough to hold pressure but not too stiff. Quick test at 180°F showed no swelling or distortion.

Replacing the old cracked seals on my compressor was a breeze once these arrived, and the 8.475" inner diameter fit the groove perfectly with no wrestling. Noticed they're noticeably more flexible than the cheap ones I pulled off, which makes me trust the 70 durometer rating for the long haul. Defin