Add to Cart Compare 1 Gallon 1000-Grit Silicon Carbide Rock Tumbling Powder (8.0 Lbs) MSRP: Now: $89.10 Was: This is 8.0 pounds of 1000-mesh SiC at $8.50 per pound, in a 1-gallon plastic container. MSRP: Now: $89.10 Was: Add to Cart Compare