US PATENT NO. 11867335

THE FLEX TAP HAS A PATENTED HEAD DESIGN WITH A SERIES OF TABS FORMING A CONTOURED FLEXIBLE RIDGE LINE THAT IS TAPERED TO THE FRONT SO THE INSTALLER CAN "PUSH-TO-LOCK" THE TAP INTO THE HOLE WITH ONE MOTION, AUTOMATICALLY COMPRESSING THE RIDGE AND SECURING THE TAP TEE INSIDE THE DUAL WALL OR SINGLE WALL MAIN.