Overview Reviews Product Description Hilti 2213685 Coupling Material: PVC Size: 6 Inch for Height Extension, CP 680-P/M. Product Videos Custom Field Size 6 Material PVC Product Reviews Write a Review Write a Review × Hilti 2213685 Coupling Material: PVC Size: 6 Inch for Height Extension, CP 680-P/M Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *