0.103" CS x 1.674" ID Siliconen O-ringen | AS568-131 | Dash 131 | FDA-goedgekeurd | Hardheid 70 | Rood (110 / Verpakking)

Honestly, these sealed the deal on a stubborn leak in my hot water line—the -80°F to +450°F range is a huge relief since I run equipment in brutal conditions. The 70 durometer feels neither too squishy nor rock-hard, and the red tint makes them way less likely to get lost in my parts bin.

The temperature range on these is what sold me, and so far they’ve held up perfectly in a high-heat application where my old rubber ones kept crumbling. They’re a nice, firm red silicone with a clean finish, and the 1.674" inner diameter seated snugly without any wrestling.

The heat range on these is exactly what I needed for a hot water application, and they seated perfectly. My only minor gripe is that the red color makes them a bit harder to spot against the metal fitting.