Latex Membranes provide a tight fit around prepared soil specimens and serve as a barrier to protect against leakage from chamber fluids into the specimen during testing. They are available in sizes ranging from 1.4 to 6.0in (36 to 152mm) with thickness of 0.012in (0.30mm) or 0.025in (0.635mm). Used with Triaxial Cells or Flexible Wall Permeability Test Cells.