This efficient foamer is based on a standard B&G 1 gal. tank, and it is pressurized by hand. The XR-Value provides precision control of the foam delivery, and the 6 in. curved tip is designed for treating voids behind walls and cabinets. This system is easy to use, there are not adjustment to make during application, and it can be carried anywhere in a commercial and residential account. There is an optional plastic drain tip that can be used to apply Microfoam EF microbial cleaner to floor drains. The Versafoamer HH is designed for years of dependable service and most replacement parts are interchangeable with the standard B&G 1 Gallon Sprayer. To learn more about foaming and the Versafoamer HH, please view our video.