Standard loaded symmetrical U-seals (polypaks)

Symmetrical loaded U seals work for both rod and piston applications. They are commonly known as Polypaks. They are symmetrical in the cross section, meaning the inside lip is the same as the outside lip. Standard, or Inch, sizes come in fractions of an inch. For any questions, or if you can't find what you're looking for, please contact us at 1 (800) 445-7803 or at