The Green Hi-Temperature/Chemical Coupling from Dallas Specialty is used for connections where high temperatures and/or harsh chemicals are present. It is designed for high endurance and performance applications in food and drug production, medical facilities, pharmaceutical plants, laboratories, film and printing plants, testing labs, and research labs and facilities. It is resistant to hydrochloric, acetic, nitric and sulphuric acids. It comes standard with two 5/8-inch wide, 80-pound torque constant tension bands made of 301 stainless steel. Its .012-inch solid stainless steel shear band provides structural strength for extra load-bearing capacity where needed. 800-222-5644; www.dallasspecialty.com.