Metric Buna O-rings 2.5 x 1mm Minimum 25 pcs - OringsandMore
Nitrile Rubber O Ring 47mm OD 2.5mm Width Round Sealing Washer Sealing Gasket Ring Faucet O-Ring Black Pack of 50: Amazon.com: Tools & Home Improvement
NBR O-ring 200 x 2.5mm (OD 205mm) 70 Shore A [5 Pieces] | Tameson.com
72X2.5 Oring 72mm ID X 2.5mm CS NBR Nitrile O ring O-ring Sealing Rubber - AliExpress
FKM O-ring 5 x 2.5mm Minimum 6 pcs - OringsandMore