Aliso Viejo, California - American Zettler, Inc. is now offering the ST9721-U4 sealed automotive relay socket, the next offering in a growing line of automotive products. This automotive relay socket is designed to fit the AZ973 shrouded relay, which includes the relay gasket and uses push to seat terminations. Wire seals are also available and sold separately. One socket and 2 sizes of wire seals will meet all your needs. All components are U.L. recognized materials with excellent chemical and flame resistance. This design is not only cost effective but also labor saving to make it the best value on the market.