Viper is a non-toxic, non-flammable coil cleaner designed to replace toxic cleaners for degreasing condenser and evaporator coils. The aerosol injector produces a penetrating foam that has excellent vertical hold, the company says. The foam will liquefy and drain within a few minutes, removing imbedded grease and grime. Condenser coils require only a light water rinse and there is no need to rinse evaporator coils. The product is nonirritating, emits no odor, and does not contain any VOCs, says the manufacturer.

Refrigeration Technologies, Division of RTX Scientific, Inc., P.O. Box 3571, Fullerton, CA 92834; 800-869-1407 or 714-870-8361; 714-526-4598 (fax); (Web site).