حلقات O من النيوبرين 0.103 بوصة CS × 0.361 بوصة ID | AS568-110 | داش 110 | صلابة 70 (1000 / عبوة)

The temperature range on these is a real selling point for me, since my shop floor swings from freezing winters to hot summers. I went through the whole box resealing some pneumatic fittings and didn't have a single one split on installation.

The 70 durometer hardness gives just enough give to seat firmly without squishing out of shape—I've used a dozen so far and they hold up great in the heat. The -45°F to +250°F range is exactly why I picked these for a project that sees both extremes, and they've handled it without cracking.

These fit perfectly on my air compressor fittings. The 70 durometer is firm enough to seal well but still easy to install without tools. Glad I bought the bulk pack since I keep finding new uses for them.