The real thing. Mixes pressurized sand with air through 20 ft hose to a 3/16 or 1/4 inch ceramic nozzle. Requires a 100 CFM air compressor. discounted price when rented with an air compressor.
Dependable Ingersoll Rand air compressor will run a 90 lb hammer, a 300 sandblaster, clear irrigation lines, and many other uses. uses a pintle hitch or a 2 in ball.