From chemspec
Pre spray/traffic lane cleaner concentrate/detergent additive designed for upholstery, draperies and carpet to remove greasy stubborn soil. Use as a spotter for inks, floor finish, shoe polish, light grease, oil, tar and other stubborn spots. Can be used undiluted as a pre-spray or spotter on water sensitive fabrics. Makes up to 42 litres of ready to use detergent. Very effective on draught marks in carpets. pH @ use: 7.5 - 8.5. Coverage: N/A. Dilution: Various see label. Appearance: Clear yellow liquid. Fragrance: Citrus. 5 litres.
Found it to be much better than fab rest