Various profile geometries can be machined or injection-molded as an alternative to the O-ring.
Quad Rings (X-Rings)
universal application

GD-QUE
Square Rings
universal application

GD-RUE
Rod Profiles
dynamic application

GD-SDE1
GD-SDE2
GD-SDE3
Piston Profiles
dynamic application

GD-KDE1
GD-KDE2
GD-KDE3
Axial Profiles
static application

GD-ASE1
GD-ASE2
GD-ASE3
GD-ASE4
GD-ASE5