Overview Product Description Crouse-Hinds TP671 Masonry Box Metallic 1-Gang 2-1/2 Deep Knockout Diameter- 1/2 Inch And 3/4 Inch TP671-N-YAG. Product Videos Custom Field Bin Location FF-2-4-3 Product Reviews Write a Review Write a Review × Crouse-Hinds Crouse-Hinds TP671 Masonry Box Metallic 1-Gang 2-1/2 Deep Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *