3M 16238 PPS Spray Gun Holder for 4 Guns Rack for keeping spray guns used with the 3M Paint Preparation System, PPS easily accessible 3M PPS is an all-in-one disposable solution for mixing/measuring, filtering, spraying in any direction System enables the painter the ability to consistently spray at 90 to the part, no matter the part orientation (even upside down) improving transfer efficiency and reducing material waste The all-in-one solution reduces the chance of outside contamination and reduces paint consumption PPS reduces cleaning solvent consumption by up to 70% and reduces prep and clean-up time by up to 50% System delivers improved quality, lower material cost, less solvent consumption, improved productivity, less mess and easier use