8-437 FKM Back-up Ring [V890437] : The O-Ring Store LLC, We make getting O- Rings easy!
Why an O-Ring Works - Seal Design Guide | Apple Rubber Products
O-Rings? O-Yeah! How to Select, Design, and Install O-Ring Seals - YouTube
8. Parbak - Back up rings - O-Rings-Stock O-Ring Webshop
Backup Rings - Sigma Seals & Gaskets
Back-up Rings (Anti-extrusion Rings)
Global O-Ring and Seal, LLC - 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
Back-Up Rings :: JRoyal
Basic Knowledge [Sealing Business] | AIR WATER MACH INC.
Backup Rings (BUR) – CTG, Inc.
Backup rings | Seal & Design, Inc | Manufacturer and Distributor
Amazon.com : APPLIAFIT O-Ring and Backup Ring Kit Compatible with Hayward SPX0735GA for Select Vari-Flo Valves 1-Pack (3 Pieces) : Patio, Lawn & Garden
Back-Up Rings | Anti-Extrusion Rings | American High Performance Seals
Size 112 Virgin PTFE Industrial Back-Up Ring Solid
Back Up Rings for O Rings | Specialist Sealing Products
O-Rings and Back-up Rings Catalog Updated with AS568