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Buna Back-up Rings

Backup rings are designed to keep o-rings from rolling or extruding out from the groove. Backup rings are also used for U-Cups applications.


Shipping $3.75 on all orders under $15 in the USA


Orders over $15  SHIP FREE first class USPS in the USA 


Orders of $50 or more SHIP FREE Priority 2-3 day in the USA