Schluter Kerdi-KM is a pipe collar designed to be used in conjunction with the Schluter Kerdi or Schluter Ditra mattings to seal around pipes or ther similar elements that penetrate the waterproofing layer.  Note: 1 mil = 1 one-thousandth of an inch.

Schluer Kerdi-KM is sold 7"x7" 4 mil 5 units per package.