Positive seal|Redesigned to fit oblong horns|Easy to push to install or adjust|Choice of closet bolt slots or slide positioning|Double lip seal gasket|Pushes easily into 3 in or 4 in cast iron or SCH 40 DWV PVC pipe|ASTM C-564 rubber gasket|No tear out or caulking required of existing pipe|Patent No 5,937,450|Can be used on PVC, ABS, or cast iron pipe and on old lead pipe that is in good condition|Flush fit

ASTM C564