![](/assets/components/phpthumbof/cache/Back-Ups_l.c56b65be20f3614ba2f7cd97b0444fba.jpg)
Back-Ups pair with O-Rings to increase resistance to extrusion and tolerance to some fluids. Metric sizes come in millimeters.
- SKU: ORMBackUp
- Material: Nylon, PTFE, PTFE/Solid, PTFE/Split, Split/Glass Filled PTFE/Moly
- Downloads: Available Materials for Metric Back-ups.pdf, O-Ring Size Chart