19X1.2 Oring 19mm ID X 1.2mm CS VMQ PVMQ SILICONE ShA 60 Black O-ring Oring Sealing O ring Rubber - AliExpress
19X1.3 Oring 19mm ID X 1.3mm CS NBR Nitrile VMQ Silicone O ring O-ring Sealing Rubber - AliExpress
O-ring 19x1 - NBR - Nitrile - 70 Shore A - Black - ORS2580 Online Shop - Worldwide shipping
O-Ring 19-1/2" x 19" x 1/4" Buna-N 70 Durometer
Amazon.com: JUN-STORE O-Rings CS1.5mm 100PCS FKM Rubber O Ring OD 10/11/12/13/14/15/16/17/18/19x1.5mm O-Ring Fluorine Gasket Oil Seal Green O Ring SENMIAO-TH (Size : OD12x1.5mm) : Industrial & Scientific
KHJK Useful CS1.5mm 100PCS Silicone O Ring OD 14/14.5/15/16/17/18/19x1.5mm O-Ring VMQ Gasket Seal Thickness White Red Rubber 1.5mm ORing (Size : OD17x1.5mm White) : Industrial & Scientific - Amazon.com
FKM O-ring 19 x 1.8mm Minimum 4 pcs - OringsandMore
O-RING,19X1.9 for ATC200ES BIG RED 1984 (E) USA - order at CMSNL