ZMSCH2.5X37 - Value Collection - 37mm ID x 42mm Od Buna-N O-Ring 2.5mm Thick, Round Cross Section, Durometer - /Pk - 6in. x 4in. x 0.13in. - 100/PK - CA of 2 PK
Silicone O-rings 37 x 1.5mm Minimum 10 pcs - OringsandMore
Unique Bargains 10 Pcs 42mm x 37mm x 2.5mm Silicone O Ring Oil Grommets Red - Walmart.com
37x2.5 Oring 37mm Id X 2.5mm Cs Epdm Ethylene Propylene O Ring O-ring Sealing Rubber - Oil Seals & Other Seals - AliExpress