Gallon, Trailer/Stall Cleaner, Concentrated Commercial Strength Pressure Washer Cleaner, Formulated For Use On Horse Trailers, Stalls, Dog Runs, Pens, Etc. Penetrates & Loosens Dirt & Grime Without Scrubbing, Contains Anti-Corrosive Agents To Safeguard Pressure Washer Parts, Does Not Contain Bleach Or Ammonia, Earth Friendly Formula, Safe For People, Pets, & Plants, Water Based, Non-Toxic, Biodegradable.