O-ring for titration vessel stopper G60FKM
https://www.scientificgear.shop/shop/k630061707-k520-3129-o-ring-for-titration-vessel-stopper-g60fkm-29674
https://www.scientificgear.shop/web/image/product.template/29674/image_1920?unique=d768e90
O-ring for titration vessel stopper; G60 FKM
