Parker Engineered Seals Division can tailor custom molded shapes to fit specific grooves and provide drop-in installation, dramatically reducing assembly time. O-Seals have several distinct advantages over an O-Ring. The O-Seal can accommodates complex groove paths with sharp corners without the concern of stretching with standard O-Rings. The O-Seal installs straight into the groove reducing the risk of twisting, and bunching. O-Seals offer better overall reliability for applications with non-standard groove paths.