- Combo Packs
RGS Labs Inc. CU4 technology makes short work of the toughest stains! The perfect companion for the Car & Home, CU4 interior treatment deodorizes, removes stains and protects upholstery, fabric and carpet... without wasting time or water! CU4 eliminates both set-in stains and stubborn odors! With CU4 Interior Treatment, you don't cover stains... you remove them! You don't mask odors... you eliminate them! And it just smells clean.
Used it on my vehicle's upholstery. Don't know if it was because of the nature of the stain, which I think is spilled coffee, but I wasn't as impressed with it was with the vehicle cleaner and cleaning wax. Mr. Biggs on Dec 29th 2016
I use the CU4 carpet cleaner on my kitchen carpet....it removes dripped oily spots, iced tea stains and lots of other stains that are dripped off of dishes being loaded into the dish washer...
I also use it on my car upholstery and carpet but those are the easy stains..... Jodie P on Sep 11th 2016