https://sur-sealinc.com/quad-rings/black-buna/series-400/?page=2
Black Buna Quad Rings 70 Durometer - Page 2
Buna/NBR Quad Rings also refered to as "x" profile O-Rings can be used in a wide variety of static and dynamic sealing applications. They offer twice the...
quad ringsblackbunadurometer
https://slingsunlimited.com/product/7-8-grade-100-qooa-quad-leg-w-oblong-rings-adjusters-x-12-feet/
7/8" Grade 100 QOOA - Quad Leg w/Oblong Rings & Adjusters X 12 Feet - Slings Unlimited
https://pulaskipawn.com/shooting-sports/optics/scope-mounts/quad-lock-detachable-rings/detail/a192937a-a0e4-4407-a899-227c75a01a18/a4eb99e2-c65f-462e-bc97-09df2a1f26b2
Weaver - Quad Lock Detachable Rings
quad lockweaverdetachablerings
https://slingsunlimited.com/product/1-grade-100-qoo-quad-leg-w-oblong-rings-x-6-feet/
1" Grade 100 QOO - Quad Leg w/Oblong Rings X 6 Feet - Slings Unlimited
Nov 19, 2025 - 1" Grade 100 QOO - Quad Leg w/Oblong Rings X 6 Feet
https://www.techno-ad.de/produkte/quad-x-rings/
X-rings and Quad Rings - Techno Ad
May 17, 2023 - X-rings are similar to O-rings, but have an x-shaped profile. the benefits over standard O-rings: Longer life, Lower friction, Excellent sealing efficiency.
xringsquadtechno