The soils found on upholstery differ from those found on carpets, and the use of products formulated specifically for upholstery cleaning is necessary. Liquid Pro extraction rinse is ultra-concentrated and economical, and is an ideal second step in the two-step hot water extraction upholstery cleaning process to remove soils suspended by Prochems Upholstery Prespray. This two-step upholstery cleaning system is formulated to outperform other synthetic fabric cleaning agents on the market!