THE VIPER PUMP SPRAYER IS A UNIQUE 2 IN 1 DEVICE THAT IS USED FOR CLEANING JUST ABOUT ANYTHING. IT COMES WITH 2 INTERCHANGEABLE ADAPTORS, A FOAM AND JET SPRAY NOZZLE, THAT IS GREAT FOR PINPOINTING AREAS OR SPRAYING LARGE SURFACES WITH SLOW DISSOLVING FOAM. THIS SPRAYER IS LIGHTWEIGHT, PORTABLE, EASY TO USE, AND HAS HOLDS UP TO 50 OUNCES OF PRODUCT. BEST OF ALL, IT IS COMPATIBLE WITH ALL VIPER CLEANERS, DEGREASERS, AND DISINFECTANTS.