+3 Gray Grout Brush | Soft Bristle 310307 $12.95 In stock Quantity: 1 Add to Bag Product Details UPC: 0.00 Brand: no Gray Grout Brush is perfect for tile that has a sensitivity to agitation. Softer stone and clay based surfaces are a great fit for this brush. The compression fitting can be adapted for any NON-threaded pole. Save this product for later Favorite