Residential Electric Sponge 'Berta'
January 10, 2005
Clean 800 to 1500 sq. feet per hour and leave all joints even and full with one pass. Works on all grout types. Use 1/3 less water on the jobsite, saving you trip after trip for fresh water. The Berta weighs only 84 lbs. and has a sponge life of approximately 10,000 sq. feet. That's exceptional!