4 Pcs Black NBR Car Van Air Con A/C Seal O Ring 85 x 5mm | eBay
Amazon.com: uxcell Nitrile Rubber O-Rings 85mm OD 81mm ID 2mm Width, Metric Buna-N Sealing Gasket, Pack of 10 : Industrial & Scientific
Cs3.1mm Silicone O Ring Od 78/79/80/81/82/85/87/88/90*3.1 Mm 30pcs O-ring Vmq Gasket Seal Thickness 3.1mm Oring White Red Rubber - Gaskets - AliExpress