Prime-Line Products 194238 Double T Shower Door Bottom Seal, 36-Inch, Clear Shower Door Bottom Seal 3/4" T-Slot Mounts To Bottom Of Swinging Doors To Prevent Water Splash Out T-Shaped Tip Fits Into Channel On Door Bottom. Bottom Sweep For Swinging Shower Doors Prevents Water From Leaking Onto Floor Easy to Use Bottom Sweep For Swinging Shower Doors Prevents Water From Leaking Onto Floor Easy to Use