JINLI-CASE Seals CS1.8mm Silicone O Ring ID 46.2/47.5/48.7/50/51.5/53x1.8mm O-Ring VMQ Gasket Seal Thickness 50PCS White Red Rubber 1.8mm ORing (Size : ID50x1.8mm Red) : Industrial & Scientific - Amazon.com
53X1.5 Oring 53mm ID X 1.5mm CS FKM FPM Fluorocarbon NBR Nitrile VMQ Silicone O ring O-ring Sealing Rubber