Model 850 WHATCOM MANUFACTURING'S extra heavy-duty machine engineered and designed for use with sand!! Load up to 8.5 yards of sand and blow directly into dairy stalls. The high speed REVERSABLE cleated belt pours sand to front of stall with no HAND LABOR required!!!! Heavy Wall square tube frame and tongue with 3/16" thick floor make for a very rigid machine. All Sand Model Units come standard with a front Bulkhead Door so the volume of sand can be regulated. Next >>