Nitro-CT is our best-selling high pH pre-spray designed for use on heavily soiled carpets in residential, commercial, and industrial settings. Most ‘heavy duty’ pre-sprays are solely high pH degreasers, but Nitro-CT from Grease Magic contains real citrus extracts, anti-deposition agents, emulsifiers, degreasing agents, detergents, and brighteners to truly rejuvenate carpets while leaving behind a true citrus fragrance. Nitro CT works on almost all types of soils the professional cleaner will encounter in various settings, including petroleum-based soils, tar, asphalt, makeup, crayon, protein stains, food residue, restaurant grease, blood, milk, heavy foot traffic soils, and every day soil build-up. Nitro-CT is a fantastic product to use on carpets with soot and carbon residue! Do not use on wool. Additionally, Nitro-CT is a powerful and versatile tile & grout cleaner! Mixes easily on cold water. pH: 11.5-12. 100% satisfaction, money back guarantee.