Hardin HF5CG Air Liquid Detergent Cleaning Blow Gun (HD-F5).The HARDIN HF5CG works with your air compressor to blast cleaning solution into crevices you can’t reach by hand. Clean carpet, plastics, upholstery, wheels, convertible tops, and body seams on the exterior. The Hardin Car Cleaning Gun cleans where other tools can’t! A fine mist of cleaning solution is sprayed that does not over saturate surfaces. You’ll see the liquid turning dirty as grime is released from the surface. Wipe with a microfiber towel. Then turn water shut-off valve and use the compressed air to dry the clean area. It’s that simple. The HARDIN HD-F5 Air Liquid Detergent Cleaning Blow Gun must be used with an air compressor capable of producing a constant air pressure of at least 60 psi. Do not to exceed 110 psi in order to protect your HARDIN HD-F5 from unnecessary wear. Best results are achieved at 5 CFM or more at 90 psi. No foam gun here. It is an advanced cleaning gun designed to enhance the results of cleaners with a unique cyclonic cleaning action