Prochem Natural Carpet Rinse E157-05. Based on citric acid this professional carpet rinse product neutralizes alkaline residues without the use of harsh or corrosive acids. Natural Carpet Rinse also incorporates polymer technology to help prevent residues that may attract soil. WoolSafe approved maintenance product for wool carpets and rugs. Clear liquid with natural lemongrass and herbal fragrance. Dilution 1 to 100 pH 5.5 Unit 5L... FULL DESCRIPTION