Series U-13X, U-14X, and KS13X seals withstand 150 psi differential sealing pressure at temperatures of 40° to 400° F. Canted-coil spring energizers provide near-constant force for long seal life. Constructed of filled PTFE material, they are compatible with numerous fluids and are wear-resistant.BalSeal Engineering, (949) 460-2100, www.balseal.com