Purus Plate is for use in wooden joists to stabilize the floor gully installation
When making holes in the waterproof membrane for the floor gully inlet, it is essential that the hole has the correct dimensions. Cutting "free hand" will risk incorrect and uneven hole dimension, which can lead to leakage. Purus Knife gives fast, simple and exact hole dimensions. Purus Knife can be reused. Replacement blades are available.