Quick view Quartz Extraclean Pro Tenax $14.50 - $24.50 Remove those vacuum rings from your quartz slabs with Extraclean Pro. This 1 quart container of solvent based cleaner is designed for removing greasy suction cup rings from quartz slabs. Extraclean Pro penetrates the pores of the material to remove... Out of stock! Please check back soon, or contact us to backorder.