![Global O-Ring and Seal on Twitter: "Requesting for backup? We have backup rings readily available in NBR, Viton, and Teflon (Solid, Split, and Spiral versions). Use our Backup Ring Size Chart here Global O-Ring and Seal on Twitter: "Requesting for backup? We have backup rings readily available in NBR, Viton, and Teflon (Solid, Split, and Spiral versions). Use our Backup Ring Size Chart here](https://pbs.twimg.com/media/EvvC_ANXAAoeYA3.jpg)
Global O-Ring and Seal on Twitter: "Requesting for backup? We have backup rings readily available in NBR, Viton, and Teflon (Solid, Split, and Spiral versions). Use our Backup Ring Size Chart here
![ST230 Single Turn Split PTFE Back-Up Ring [ST230] : The O-Ring Store LLC, We make getting O-Rings easy! ST230 Single Turn Split PTFE Back-Up Ring [ST230] : The O-Ring Store LLC, We make getting O-Rings easy!](https://www.theoringstore.com/store/images/teflon-backup-ring-split.jpg)
ST230 Single Turn Split PTFE Back-Up Ring [ST230] : The O-Ring Store LLC, We make getting O-Rings easy!
![O-Ring BR Backup Ring (Polytetrafluoroethylene Resin) JIS-B-2407 | MUSASHI OILSEAL | MISUMI South East Asia O-Ring BR Backup Ring (Polytetrafluoroethylene Resin) JIS-B-2407 | MUSASHI OILSEAL | MISUMI South East Asia](https://content.misumi-ec.com/image/upload/t_product_main/v1/p/jp/product/series/221000616862/221000616862_001.jpg?$product_main$)