Description For installing closet bowls. Horn fits 3" and 4" waste lines. Stainless, waterproof; impervious to vermin, odors, gases and acids. Bacteria free. Makes positive, permanent, sanitary closet bowl seal. Will not dry out or deteriorate. Meets Fed. Spec. TT-P-1536A. WARNING: This product can expose you to chemicals including Lead which is known to the State of California to cause cancer, birth defects or reproductive harm and Butyl Benzyl phthalate (BBP) which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov