I HAVE REMOVED MINE TO PREP FOR CONCOURSE LAST YEAR
I CUT THE INNER ONE OFF AND THEN CUT THE OUTER TO SAME SIZE ONCE THEY ARE SAME SIZE PUSH THE OUTER ONE BACK TO REVELE THE HARD INNER SLIDE THIS BACK ON TO THE RAIL AND MAKE SURE IT IS RIGHT ON IF IT IS RIGHT ON IT WILL NOT LEAK AND WILL LOOK FACTORY AGAIN